Avast WEBforum

Consumer Products => Avast Free Antivirus / Premium Security (legacy Pro Antivirus, Internet Security, Premier) => Topic started by: REDACTED on August 10, 2014, 08:40:37 PM

Title: Avast! severely disrupting browsing and stuttering all media playback
Post by: REDACTED on August 10, 2014, 08:40:37 PM
Hello folks  :)

Please keep in mind I'm not particularly tech-savvy and have included as much detailed info as that limited savvy permits.

Firstly... 

Avast! Free Antivirus
Version 2014.9.0.2021
Windows Vista Business (32 bit)
Malwarebytes & SuperAntiSpyware installed but both are disable from running at start-up and I use them solely as part of a thorough scan when I come to clean my system.
Norton came installed on laptop. Uninstalled it immediately and installed Avast. Have been an Avast user for the 8 odd years since.

Browsing problem...

Subsequent to a recent Avast! update my OS slowed dramatically.
Web browsing is like dial-up on some pages and won‘t fully load page layout, for other pages they just plain won’t load.
For example, some of the popular sites which won't load or won't load fully are BBC, FaceBook, Amazon, IMDB.
Moreover, Avast! now blocks some sites I’m sure are fine, mostly forums.

Observations...

Firefox has become a total memory hog at times.
This is the same for Internet Explorer and SlimBrowser.

Media playback problem...

Media playback is unsmooth and jittery with stutters/drags/lags every 5 or so seconds in all media players: Media Player Classic Home Cinema(MPC-HC), VLC Player, Windows Media Player. Same for flash player web content: YouTube, Vimeo, etc.

Observations...

While watching a downloaded film CPU for my media player punches the ceiling at 100 and keeps on dropping and spiking. Physical Memory is also much higher than normal, high 70’s.
Flash Player web content suffers the same fate.

What I have done to isolate cause...

Disabled Avast! Web Shield, Mail Shield, and File System Shield.
No difference. Also noticed AvastSvc.exe and Avastui.exe still running in processes.
Then,
I took it a stage further and disabled Avast! at Start-Up and unchecked ‘Enable Avast! Self-defence module’. Rebooted. Noticed Avastui.exe no longer running in processes, but AvastSvc.exe was. Ended AvastSvc.exe process and the process ends yet a few seconds later instantly reappears. Can’t seem to kill it.

Observations...

Browsing is fine when Avastui.exe isn’t running. All pages load double-quick and open fully.
Media playback is now smooth, fluid.
While watching a downloaded film MPC-HC's CPU is around 50% and overall Physical Memory is around 40%, this is typical for my OS when there are no applications open and running aside from a media player.

By dint of elimination it would be fair to presume Avastui.exe is causing the issue.
Have other folks reported similar problems?
What does Avastui.exe do exactly?
How can I fix or work around this?


Thank you for reading my post

usersurname
Title: Re: Avast! severely disrupting browsing and stuttering all media playback
Post by: Eddy on August 10, 2014, 10:47:23 PM
Try a repair of avast and let us know if things changed.
Title: Re: Avast! severely disrupting browsing and stuttering all media playback
Post by: REDACTED on August 11, 2014, 05:58:09 PM
Tried the repair as suggested.
Nothing has changed, same problems.
Title: Re: Avast! severely disrupting browsing and stuttering all media playback
Post by: Eddy on August 11, 2014, 06:08:08 PM
ui is short for user interface.

Let's make sure there is nothing unusual running on your system.
Follow the instructions and attach the logs to your next post please:
https://forum.avast.com/index.php?topic=53253.0

If nothing unusual is found, at least it will rule out possible causes.
Title: Re: Avast! severely disrupting browsing and stuttering all media playback
Post by: bob3160 on August 11, 2014, 06:09:51 PM
Avastui.exe is the avast! User Interface.
Since I also use avast! free and do quite a few things with videos, I wonder what else you have installed that might be causing the problem.
I have no delays using avast! and watching, producing and uploading videos to YouTube.
I also have no problems viewing videos from other sources.
Title: Re: Avast! severely disrupting browsing and stuttering all media playback
Post by: CraigB on August 12, 2014, 01:25:46 AM
In future please use the attach function and not copy paste, Thankyou.
Title: Re: Avast! severely disrupting browsing and stuttering all media playback
Post by: REDACTED on August 12, 2014, 02:16:08 AM
Many apologies for the copy/paste.

Here are the logs as attachments.

Title: Re: Avast! severely disrupting browsing and stuttering all media playback
Post by: CraigB on August 12, 2014, 02:37:53 AM
Thanks for rectifying that :) one of the malware guys will be along a bit later to review your logs.
Title: Re: Avast! severely disrupting browsing and stuttering all media playback
Post by: magna86 on August 14, 2014, 01:44:29 PM
Hello,

Sorry for waiting...

Note: Apon launching the FRST tool, wait for the tool to preform the self-update!

1. Open notepad and copy/paste the text present inside the code box below.
To do this highlight the contents of the box and right click on it. Paste this into the open notepad.
NOTICE: This script was written specifically for this user, for use on that particular machine. Running this on another machine may cause damage to the operating system

Code: [Select]
Start
Hosts:
HKU\S-1-5-21-3564082515-202371471-1491561279-1000\Software\Classes\.exe: exefile => "%1" %* <===== ATTENTION!
HKU\S-1-5-21-3564082515-202371471-1491561279-1000\Software\Classes\exefile: "%1" %* <===== ATTENTION!
HKU\S-1-5-21-3564082515-202371471-1491561279-1000\...\Run: [fsm] => [X]
HKU\S-1-5-21-3564082515-202371471-1491561279-1000\...\MountPoints2: {bbb0d05c-16c8-11dd-a8f9-001b240ffa75} - G:\LaunchU3.exe
FF Homepage: https://www.startpage.com/
FF Extension: Ant Video Downloader - C:\Users\Andrew Callister\AppData\Roaming\Mozilla\Firefox\Profiles\28t0c32x.default\Extensions\anttoolbar@ant.com [2014-08-02]
EmptyTemp:
C:\Users\Andrew Callister\AppData\Roaming\Mozilla\Firefox\Profiles\28t0c32x.default\Extensions\anttoolbar@ant.com
End


2. Save notepad as fixlist.txt to your Desktop.
NOTE: => It's important that both files, FRST and fixlist.txt are in the same location or the fix will not work.


3. Run FRST/FRST64 and press the Fix button just once and wait.
If the tool needed a restart please make sure you let the system to restart normally and let the tool completes its run after restart.

The tool will make a log on the Desktop (Fixlog.txt). Please attach it to your reply.
Note: If the tool warned you about the outdated version please download and run the updated version.




.





1. Please download ComboFix by sUBs ((http://www.mcshield.net/personal/magna86/Images/IconComboFix.png)) from here (http://download.bleepingcomputer.com/sUBs/ComboFix.exe) and save it to your Desktop.
If you are unsure how ComboFix works, read this guide (http://www.bleepingcomputer.com/combofix/how-to-use-combofix).

--------------------------------------------------------------------
2. Temporarily disable your AntiVirus program, usually via a right click on the System Tray icon. They may interfere with Combofix.
If you are unsure how to do this please read this (http://www.techsupportforum.com/forums/f50/how-to-disable-your-security-applications-490111.html) or this (http://www.bleepingcomputer.com/forums/topic114351.html) Instruction.

Instructions how to disable avast:
• Right click on the avast! system tray icon ((http://www.mcshield.net/pg/images/avast5.png)) in the lower right corner of the screen and scroll up to avast! shield controls;
• In the menu that appears, choose Disable Permanently. When you are prompted to turn off security, click Yes.

Note:  Do not forget to turn back on this option after the cleaning by choosing avast! shield controls > Enable all shield options.


--------------------------------------------------------------------
3. Run ComboFix. Then, on disclaimer window, click I Agree! button.

- ComboFix will check if there is a newer version of ComboFix available.
Click Yes if prompted to download.

-If Recovery Console is not installed, ComboFix will offer download & installation.
Click Yes to allow ComboFix to install Recovery Console.
- ComboFix will scan your computer in stages, total of 50 stages.
Do not mouse-click around while ComboFix is running.
- If malware is detected, ComboFix will begin with its removal, and may need to restart Windows.
Note:If you see a message like "Illegal operation attempted on a registry key that has been marked for deletion" just restart your computer.

--------------------------------------------------------------------
4. When the tool is finished, it will produce a log report for you. (typical location: C:\ComboFix.txt)
=> Attach log report (ComboFix.txt) back to topic.

ComboFix shall also create addition log (typical location: C:\Qoobox\ComboFix-quarantined-files.txt)
=> Please attach that report (ComboFix-quarantined-files.txt) as well.
Title: Re: Avast! severely disrupting browsing and stuttering all media playback
Post by: REDACTED on September 26, 2014, 11:52:55 PM
Hello magna86 & all other folks  :)

My laptop has given me all kinds of bother recently.
It doesn't have a power button and I have to short it with a paperclip to start up.
That is some of the reason why this reply comes well over a month since the last post in my thread.
Please accept my apologies, your assistance hasn't been wasted.

And so...

Thank you for the script magna. Much appreciated for taking the time out to do that for me.
I just ran FRST and ComboFix and the requested logs are attached.
By the by, I didn't get a ComboFix quarantined files log, only the standard log report.

Additionally, my Avast! tray icon vanished and I can't seem to get it back. I tried unchecking then checking Show Avast! Tray Icon but no joy. If anyone can help I'd be grateful?

Thank you again for the help thus far.

usersurname
Title: Re: Avast! severely disrupting browsing and stuttering all media playback
Post by: REDACTED on October 09, 2014, 07:37:06 PM
Hello folks  :)

Would a mod or member with privileges kindly PM magna86 and ask if he/she could take a wee look at the requested logs in my previous post? I'd be very grateful.

Update...

Since the script fix, flash player content and browsing has greatly improved all-round, nonetheless, media playback in MPC, VLC, etc is still as it was: Unsmooth, stuttering and laggy.

Reading through many tech boards and blogs this past week I have come across umpteen former Avast! users who were left little choice but to switch to a different AV because the 2014 version had sucked the performance rate out of their OS; firing CPU all over the shop, hogging loads of extra memory, and in essence, simply interfering in the background.

This was reported on old machines & OS's and new machines & OS's.
It does seem like compatibility is a sudden big issue for plenty of users where there wasn't one beforehand.
The aforementioned is a mere recounting of what I've read, it's certainly not a denouncement of the Avast! team.

Correspondingly, I noted that many of the users who had made an untroubled switch over to a different AV had done so with Bitdefender.
I have yet to try it because I want to sort this media playback problem and stick with Avast!, though, if I cannot sort it out, I will give Bitdefender a go first due to the positive feedback and its lightweight application.

Perhaps that's the way to go. Try another AV and return to Avast! at a future date when a brand-new version is released.

Thank you for reading my post.

usersurname
 
Title: Re: Avast! severely disrupting browsing and stuttering all media playback
Post by: magna86 on October 10, 2014, 07:22:41 PM
Hello,

There was a time lag in posts (reply) so I stopped to follow the topic. The posted logs are worthless (duo system time changes) so I shall need a fresh diagnostic logs.



Step#1




Please download Farbar Recovery Scan Tool (http://www.bleepingcomputer.com/download/farbar-recovery-scan-tool/) ((http://www.mcshield.net/personal/magna86/Images/FRST_canned.png)) by Farbar and save it to your desktop.

Note: You need to run the version compatibale with your system. If you are not sure which version applies to your system download both of them and try to run them.
Only one of them will run on your system, that will be the right version.


.






Step#2


Please download GMER, AntiRootkit tool from the link below and save it to your Desktop:

Gmer download link (http://www2.gmer.net/download.php)
Note: file will be random named



Double-clicking to run GMER.
> Attach here all Gmer logreports. (Gmer1; Gmer2 and Gmer3)
 
Title: Re: Avast! severely disrupting browsing and stuttering all media playback
Post by: REDACTED on October 10, 2014, 10:08:01 PM
Hello magna86  :)

Thanks for getting back to this thread.

Just had GMER totally cripple my OS.
It ran the first of the three scans quick, then on the second scan it froze at around 20 minutes in and as a consequence froze my entire OS. CPU stuck at 100% then I couldn't even open task manager anymore.
I managed to save the log up until that point which took a good 10 minutes.
Leaving it be for another 10 odd minutes and it wouldn't unfreeze and I couldn't close GMER for love nor money.
Attempted to shut down and it cleared all the icons from my desktop but stuck on my background pic for over 40 minutes, fan blowing like mad, just in pain.
Thought my lappy was about to die.
Had no choice and pulled the plug.

Both FRST logs requested are attached.
Full Gmer1 log attached & Gmer2 log until it crashed attached.
Seeing they're incomplete I'd guess they won't be of much use.

Don't want to use GMER again mate. Heart in the mouth stuff that was.

Please advise the next best thing?

usersurname
Title: Re: Avast! severely disrupting browsing and stuttering all media playback
Post by: magna86 on October 11, 2014, 10:52:29 AM
Hi,

Do not worry for GMER. It is a powerfull ARK tool and thus behavior sometimes is normal. Thus I'll shall need one more ARK check;




Download TDSSKiller (http://media.kaspersky.com/utilities/VirusUtilities/EN/tdsskiller.exe)  and save it to your desktop

  Execute TDSSKiller.exe by doubleclicking on it.
Confirm "End user Licence Agreement" and "KSN Statement" dialog box by clicking on Accept button.
Once complete, a log will be produced at the root drive which is typically C:\ ,for example, C:\TDSSKiller.<version_date_time>log.txt


Please post the contents of that log in your next reply.






.




This shall target some leftovers and clean some junk ...


1. Open notepad and copy/paste the text present inside the code box below.
To do this highlight the contents of the box and right click on it. Paste this into the open notepad.
NOTICE: This script was written specifically for this user, for use on that particular machine. Running this on another machine may cause damage to the operating system

Code: [Select]
CloseProcesses:
FF Homepage: https://startpage.com/eng/?
FF Extension: Ant Video Downloader - C:\Users\Andrew Callister\AppData\Roaming\Mozilla\Firefox\Profiles\28t0c32x.default\Extensions\anttoolbar@ant.com [2014-09-28]
Hosts:
S3 catchme; \??\C:\Users\ANDREW~1\AppData\Local\Temp\catchme.sys [X]
EmptyTemp:
C:\Users\Andrew Callister\AppData\Roaming\Mozilla\Firefox\Profiles\28t0c32x.default\Extensions\anttoolbar@ant.com


2. Save notepad as fixlist.txt to your Desktop.
NOTE: => It's important that both files, FRST and fixlist.txt are in the same location or the fix will not work.


3. Run FRST/FRST64 and press the Fix button just once and wait.
If the tool needed a restart please make sure you let the system to restart normally and let the tool completes its run after restart.

The tool will make a log on the Desktop (Fixlog.txt). Please attach it to your reply.
Note: If the tool warned you about the outdated version please download and run the updated version.
Title: Re: Avast! severely disrupting browsing and stuttering all media playback
Post by: REDACTED on October 11, 2014, 04:53:24 PM
Hello magna86  :)

Thanks for the quick reply. Most grateful.

TDSSKiller log attached.

In respect to the script fix, I didn't run it because it looks the same as a section in the last script you wrote me, wherein, after I ran that fix it deleted Startpage which is my default browser and homepage, and Ant Tool Bar which is my preference for an internet video grabber.

As a result, I reset Startpage as my homepage and simply downloaded the Ant Tool Bar add-on from Mozilla's add-on page. The Ant Tool Bar is currently, and was previously the latest up-to-date version.
Most importantly, neither make any difference to the unsmoothe, stuttering media playback issue which is the sole bother I have now. avastui.exe was, and still is causing this.

From your perspective could you briefly explain what the problem is with Startpage and Ant Tool Bar?

Thanks once again for your assistance so far.

usersurname.
Title: Re: Avast! severely disrupting browsing and stuttering all media playback
Post by: REDACTED on October 12, 2014, 12:16:46 AM
I was running Avast Free version and had no problem streaming one of my favorite sites. In fact, I'm streaming it now on another Windows 7 computer running Avast Free version with no problem.

Yesterday I purchased Avast Internet Security suite and am running Avast program version 2014.9.0.2021 on a brand new laptop running a fresh installation of Windows 7 with all current updates.

I can stream Youtube videos without issue but cannot stream the video found at this url:
http://www.shepherdschapel.com/satellite-feed.htm

It just keeps acting as though it's loading without ever my seeing the video. So there's something about Avast that is preventing me from viewing that particular stream.

I added the url to my exclusions list to no avail. One thing I did notice is that I can view the video in the browser when in SafeZone mode.

Anyone have any ideas as to why I can't view that video stream while running in standard Windows 7 mode running Avast Internet Security suite?
Title: Re: Avast! severely disrupting browsing and stuttering all media playback
Post by: magna86 on October 12, 2014, 03:36:44 PM
In respect to the script fix, I didn't run it because it looks the same as a section in the last script you wrote me, wherein, after I ran that fix it deleted Startpage which is my default browser and homepage, and Ant Tool Bar which is my preference for an internet video grabber.


From your perspective could you briefly explain what the problem is with Startpage and Ant Tool Bar?

Obviously you know what you're doing. I can not explain, as these are the most basics things. I shall remove the tools now.


Download DelFix (http://general-changelog-team.fr/fr/downloads/finish/20-outils-de-xplode/9-delfix) by Xplode to your Desktop.

Run the tool and check the following boxes below;
(http://www.mcshield.net/personal/magna86/Images/checkmark.png) Remove disinfection tools
(http://www.mcshield.net/personal/magna86/Images/checkmark.png) Create registry backup
(http://www.mcshield.net/personal/magna86/Images/checkmark.png) Purge System Restore

Click Run button and wait a few seconds for the programme completes his work.
At this point all the tools we used here should be gone. Tool will create an report for you (C:\DelFix.txt)

The tool will also record healthy state of registry and make a backup using ERUNT program in %windir%\ERUNT\DelFix
Tool deletes old system restore points and create a fresh system restore point after cleaning.


Title: Re: Avast! severely disrupting browsing and stuttering all media playback
Post by: REDACTED on October 12, 2014, 05:20:39 PM
Hello magna86  :)

Forgive me, but I don't understand your previous reply.

I asked you briefly explain because I know next to nothing about the help you've provided and the tools and scripts you have asked me to run.
If I learn nothing from the troubles I'm experiencing I won't be able to recognise red flags in future.

Startpage is a popular search engine concerned with protecting user privacy and I've used it for years.
Ant Tool Bar is a popular internet video grabber and the best freeware grabber I've used.
All I wanted to know was why, from your perspective, I cannot have these on my system and must use an alternative?
Something that is basic to you is far from to someone like me who is patting around in the dark here.

I no longer have any browsing problems nor Flashplayer problems as described in my OP.
From my perspective, the main issue I still have is unsmoothe, stuttery playback while watching films/TV in media players, i.e. MPC-HC, VLC, etc.
As I've mentioned in this thread, the only way to cure this is to kill the avastui.exe process, whereby I must uncheck Avast! in both Services and Startup of System Configuration then restart my laptop. When avastui.exe is not running media playback is perfect.
The aggro comes from the time it takes to restart my laptop and wait for everything to get up and running. A particular svchost process always maxes out CPU for at least 10 minutes right after restart and I have no option but to wait for it to settle down. It's a whole lot of bother to do everytime I want to watch a film/TV show/doc, etc. Then I have to go through it all again just to get back online.
If I could just turn Avast! off without having to restart that would be no bother, but I cannot, it is always there meddling in the background.

The original script you wrote didn't change the media playback issue. With Startpage and Ant Tool Bar rid from my system playback was still unsmoothe and stuttery. That is why I redownloaded and reset them. On my end they have both done nothing but serve me well.

Your assistance hasn't been taken for granted. I appreciate the time given to help a total stranger.

If you don't want to explain that's cool, but it's not fair you hold it against me for asking.

Thank you,

usersurname
Title: Re: Avast! severely disrupting browsing and stuttering all media playback
Post by: bob3160 on October 12, 2014, 05:28:13 PM
Quote
If I could just turn Avast! off without having to restart that would be no bother, but I cannot, it is always there meddling in the background.
It is actually there in the background protecting you. I thought that's why you installed avast! ?
Title: Re: Avast! severely disrupting browsing and stuttering all media playback
Post by: magna86 on October 12, 2014, 07:24:09 PM
Hello,



First, know that there is no user privacy on internet. Do not live in ilusions ...
As for Ant Tool Bar, I was target this as part of my cleaning routin as these kind of extensions contains adwaresing.

The alears was cause a large number of junk files (aka temporaly data or cache data ...etc). You also had some software restrictions on executed files (malware behavior). You also had some adware leftovers ...etc.

Quote
... stuttery playback while watching films/TV in media players, i.e. MPC-HC, VLC, etc.

This issue isn't malware related.

Quote
The original script you wrote didn't change the media playback issue.


Nor I was intent to.  ;) Bots script (first you did run and the second you cleverly refused to run) contain varius operations that meant good for your system for speed up and smootly running ...etc.

About the tools I use here, I can not much to say. You can read initial description here;

http://www.bleepingcomputer.com/download/gmer/
http://www.bleepingcomputer.com/download/tdsskiller/
http://www.bleepingcomputer.com/download/combofix/
http://www.bleepingcomputer.com/download/farbar-recovery-scan-tool/


Cheers
Title: Re: Avast! severely disrupting browsing and stuttering all media playback
Post by: REDACTED on October 12, 2014, 08:20:02 PM
Quote
If I could just turn Avast! off without having to restart that would be no bother, but I cannot, it is always there meddling in the background.
It is actually there in the background protecting you. I thought that's why you installed avast! ?

Hello bob3160,

What exactly is Avast! protecting me from while I watch a downloaded film from my HD in a media player?

I don't need Avast! to protect me while I am not online, hence, it is meddling in the background because there is no function for me to simply turn off the cause of the problem, namely, the avastui.exe process.
If I could simply cancel the user interface process or switch Avast! off so that it's totally inactive while I watch a film then it would be no bother at all. I could watch the film then switch it back on. Easy.
This is not how it is.
This is why I have returned to this thread again and again.
avastui.exe is the problem and I am nowhere closer to discovering what exactly in the user interface is causing unsmoothe, stuttery playback.

usersurname
Title: Re: Avast! severely disrupting browsing and stuttering all media playback
Post by: bob3160 on October 12, 2014, 09:25:32 PM

I don't turn off my protection at every whim.
I also have no problems producing, uploading, downloading or watching videos despite the fact that
avast! is running in the background. You appear to be fishing at straws and somehow have yourself convinced
that it must be avast!'s fault that you have problems watching videos.
I suggest that you dig a little deeper and find the true problem.

Title: Re: Avast! severely disrupting browsing and stuttering all media playback
Post by: REDACTED on October 13, 2014, 12:20:40 AM

I don't turn off my protection at every whim.
I also have no problems producing, uploading, downloading or watching videos despite the fact that
avast! is running in the background. You appear to be fishing at straws and somehow have yourself convinced
that it must be avast!'s fault that you have problems watching videos.
I suggest that you dig a little deeper and find the true problem.

Hello bob3160,

You have thousands of posts to your name yet deduce that because Avast! is working peachy on your machine and OS it must be working peachy on my machine and OS. By that logic the latest version of Avast! is either flawless or we all need to buy your machine and match your set-up.

At no juncture have I criticised Avast!, quite the contrary.
If you had reread my OP before posting your aforequoted reply you would have noted that this problem emerged after an Avast! update. Right after.
Once the avastui.exe process is fully disabled I have no playback issues whatsoever.
In the 8 odd years I've run Avast! I have never experienced unsmoothe, stuttery media playback. Not once. Then right after the latest version update I do. When I write right after, I mean within minutes I knew something was amiss.
Bigger than that, magna86 mentioned in his/her last post that the playback issue is not malware related, consequently, if correct, this implies my conclusion.
There are clear compatibility issues with the latest Avast and loads of users machines and OS's, old and new. Take a look around. I'm not assigning blame, it's just evident.
The method to switch off all Avast! processes is arduous. That's the only temporary fix I currently have. If there was a quick and easy way to do this I wouldn't need to revisit this thread.

usersurname
Title: Re: Avast! severely disrupting browsing and stuttering all media playback
Post by: Eddy on October 13, 2014, 12:34:49 AM
Disable one shield and try to play a dvd.
If it stutters, enable the shield and disable the next one.

Let us know which shield is causing the stuttering.
Title: Re: Avast! severely disrupting browsing and stuttering all media playback
Post by: REDACTED on October 13, 2014, 02:36:20 AM
Disable one shield and try to play a dvd.
If it stutters, enable the shield and disable the next one.

Let us know which shield is causing the stuttering.

Hello Eddy,

I wrote a reply before but it posted incomplete for whatever reason/s.

I went through and fiddled with the uncomplicated stuff before making my OP.
Disabling shields one-by-one or all together makes no difference.
Unchecking boxes in Troubleshooting one-by-one or in combinations makes no difference.
Unchecking the numerous other options in preferences and combinations thereof makes no difference.
As I have explained, the only way to cure the problem is > System Config > uncheck Services > uncheck Startup > restart machine. That I am aware and advised, this is the one and only method to fully disable avastui.exe process which I believe is the cause.
This would all be rather inconsequential if disabling Avast! was as simple as disabling all the shields. The User Interface is clearly doing something while I watch a film/etc in my media player.
That is what I would love to know. What is Avast! actually doing when its three active protection shields have supposedly been disabled?

Thank you for reading my post.

usersurname
Title: Re: Avast! severely disrupting browsing and stuttering all media playback
Post by: REDACTED on November 10, 2014, 06:28:46 PM
Hello forum,

On the grounds that I have still yet to correct the issue detailed throughout this thread, I must ask once again, could somebody familiar with Avast! please explain exactly what the User Interface is actually doing when its three active protection shields have supposedly been disabled?

The avastui.exe process shows that memory still bobs up and down between 2,650K-3,850K when all three shields are disabled.
The AvastSvc.exe process memory bobs around 16,000K when all three shields are disabled.

If this can be diagnosed then I may be able to figure out a far quicker temporary fix than having to disable Avast in Startup & Services and restarting my machine everytime I want to use a media player.

Thank you

usersurname
Title: Re: Avast! severely disrupting browsing and stuttering all media playback
Post by: REDACTED on November 10, 2014, 06:56:03 PM
1) Comments like these worry me:
"Had no choice and pulled the plug"
"It doesn't have a power button and I have to short it with a paperclip to start up."

Check your hard drive and OS which could be a major reason why you are experiencing problems.  Run chkdsk /f first and make sure your HD is sound.

2) There is a new version of Avast since you started this post (10.0.2208).  I would recommend downloading it and then:
a. Reboot
b. Turn off your shields
c. Uninstall your previous version
d. Reboot
e. See if your playback problems continue, if not then proceed...
f. Install the new version (custom install and uncheck all the "extra" tools)
g. Reboot
h. See if your playback problems continue
I. Report back here with much, much less than a month between your posts
Title: Re: Avast! severely disrupting browsing and stuttering all media playback
Post by: REDACTED on November 11, 2014, 12:57:48 AM
...figure out a far quicker temporary fix than having to disable Avast in Startup & Services and restarting my machine everytime I want to use a media player.

Antivirus software DOES add some system overhead.  It needs to hook into the operating system, and some of those hooks remain in place even when you temporarily disable features.

You may find that your computer is just barely powerful enough for you to watch video, and when additional software is present it's no longer just powerful enough.

Have you checked the web site of the maker of your video card to see if they've released an updated display driver for your hardware and OS?  Sometimes display driver updates increase the efficiency of display operations.

Since you asked what Avast does in the background, one significant thing is to download updates from the Internet in the background.  There are streaming updates that come in virtually all the time.  Look in the History section to see when and how often.  It's not impossible to imagine that doing data transfer in the background is taking enough time away from your video player to cause visible artifacts.

-Noel
Title: Re: Avast! severely disrupting browsing and stuttering all media playback
Post by: Sorzy on November 11, 2014, 02:55:05 AM
Just wanted to let you know you're not alone. I suffered with the problem, very similar to mine, my entire last years subscription and swore when it was up I'd get a different virus software program. Then I noticed there was a new update. So, before renewing or going somewhere and with something else, I updated from 2014 to 2015. IT seemed to fix the problem. So, like a dumbass, I renewed. And I say that because the problem is back and I'm pissed. So much so, after posting in the forum, Help please, explaining and even posting a picture of an issue with one website, and not getting a resolution, though at a point I thought it was resolved again, after repairing several times, trying suggestions from the few people who replied.

Long story short, personally, I'm done and want and am asking for a full refund. I like Avast, it's very user friendly and offers a lot for the money. But it's not worth the constant headache.

So, do what you will. But my advice is if you're having these issues, don't expect much help and sure as hell don't expect them to go away.
Title: Re: Avast! severely disrupting browsing and stuttering all media playback
Post by: REDACTED on November 15, 2014, 03:16:09 AM
Thanks for the replies folks  :)

dprout69, I will run Check Disk when I have enough spare free in the event something goes wrong. I'm sure you know to well it can take ages.
As for updating Avast! just replace it with Check Disk in the sentence above.
Don't let the lack of a power button throw you. Countless lappy lovers who own/owned low-end Acers had their power buttons cave in and resorted to a raft of stone-age methods to fire em up. I've been using my trusty paperclip for nigh-on 4 years. Some would call that heroic. 

NoelC, cheers for being the first to offer an explanation pertaining to what Avast! is actually doing in the background.
You clearly know more than me, albeit, I have used Avast! for years and the problems only emerged immediately after an update to the then latest 2014 version.
I would have presumed previous versions were streaming updates virtually all the time in the background in like manner.
But as you've alluded to, maybe the 2014 version has just pushed my system a mite to hard to handle.
As a matter of interest, though my OS and HD are both old and down market, I have always kept my machine as lite as can be. I have 40 processes running at the minute and rarely ever more than that.
Minor problems over the years have come and gone, and as it stands this media playback issue is by far the biggest pain in the arse I've had to contend with.

Lastly, I auto browsed a driver update for my graphics card but it was currently up-to-date. The last release was 2008.
I then surfed around myself and found Intels Driver Utility which determined the newest driver compatible with my OS was the Intel(R) Graphics Media Accelerator Driver For Mobile.
I downloaded it through their utility, unzipped the file, and then tried to install through their utility but it failed(This is a common nag with the utility according to web searches).
Tried it manually and still couldn't install it.
Decided to laugh it off and deleted the files.
Because the failed install reshuffled all my desktop icons out of position I restarted my lappy.
Typed in password, screen went black, command prompt appeared for a second or two, screen went a spectrum of colours then loaded my desktop as usual but now with Intel(R) Graphics Media Accelerator Driver For Mobile in the tray and 3 processes running in task manager.
I don't fully understand this driver and its useability. I thought I'd just install it and that's it but there's a whole bunch of settings to fine-tune. It seems something gamers need rather than folks like me.
As it is, it hasn't done anything for my playback issues.
I guessed I could just roll back to my previous driver but that option isn't available.
In addition, Device Manager > Display Adapters shows Intel(R) 945 Express Chipset Family --- and --- Personalisation > Display Settings > Advanced Settings > Properties > Driver shows Mobile Intel(R) 945 Express Chipset Family --- but --- Intel(R) Graphics Media Accelerator Driver For Mobile is shown as if it's separate.
I thought it would replace it?
What will happen if I uninstall it?
I'm having a slow moment and got myself confused here.
I have attached a few screenshots and a diagnostic report for visual ease. I would be very grateful if somebody would take a wee look and tell me what's what.

Thank you for reading my post.

usersurname
Title: Re: Avast! severely disrupting browsing and stuttering all media playback
Post by: REDACTED on November 15, 2014, 03:18:11 AM
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