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Avast Products => Avast Free Antivirus / Premium Security (legacy Pro Antivirus, Internet Security, Premier) => Topic started by: fafner on April 06, 2018, 03:31:44 PM

Title: AvastUI.exe * 32 always uses 25% of cpu's resources.
Post by: fafner on April 06, 2018, 03:31:44 PM
It has occurred since April 6.
AvastUI.exe * 32 always uses 25% of cpu's resources.
I am not running the scan.
It will not fix after reinstalling.
There are no other installed software.
Is there a solution?

This sentence is translated from Japanese to machine.
I am sorry if it is difficult to read.
Title: Re: AvastUI.exe * 32 always uses 25% of cpu's resources.
Post by: pk on April 06, 2018, 03:50:17 PM
Hi,
when you see 25% of cpu resource for avastui.exe process, can you please run Task Manager (taskmgr.exe), right click on this process and select "Create dump file"? Please compress this file (e.g. zip/rar or 7zip) and upload it on our ftp (https://support.avast.com/en-ww/article/FTP-file-upload). Thanks!
Title: Re: AvastUI.exe * 32 always uses 25% of cpu's resources.
Post by: XanderK on April 11, 2018, 07:16:22 PM
I'm experiencing the same behaviour after updating to program version 18.3.2333. Avast is using up to 30+% CPU time while I have not "instructed" Avast to perform any actions.
I have already tried to repair my installation but that didn't help.
I'm running Windows 10 Pro including Avast Premier including an active subscription.
Any ideas?
Title: Re: AvastUI.exe * 32 always uses 25% of cpu's resources.
Post by: DavidR on April 11, 2018, 07:53:23 PM
I'm experiencing the same behaviour after updating to program version 18.3.2333. Avast is using up to 30+% CPU time while I have not "instructed" Avast to perform any actions.
I have already tried to repair my installation but that didn't help.
I'm running Windows 10 Pro including Avast Premier including an active subscription.
Any ideas?

Yes, follow pk's (an Avast Team Member) request for information when the CPU % is high.
Title: Re: AvastUI.exe * 32 always uses 25% of cpu's resources.
Post by: XanderK on April 11, 2018, 09:23:50 PM
Information has been submitted to the Avast FTP server.

Filename: xander.kort@x-on.nl.zip
Password: virus

Please keep me updated towards a resolution.
Title: Re: AvastUI.exe * 32 always uses 25% of cpu's resources.
Post by: DavidR on April 11, 2018, 10:28:20 PM
Information has been submitted to the Avast FTP server.

Filename: xander.kort@x-on.nl.zip
Password: virus

Please keep me updated towards a resolution.


Thanks, hopefully pk can pick up on this for the Avast Team.
Title: Re: AvastUI.exe * 32 always uses 25% of cpu's resources.
Post by: XanderK on April 13, 2018, 11:29:27 AM
Any news on this topic?
It is rather annoying as the fan inside my Surface Pro 3 is running at higher speed and thus making noise as a result of the increased 30+% CPU resources.
Title: Re: AvastUI.exe * 32 always uses 25% of cpu's resources.
Post by: kwiq on April 13, 2018, 02:50:19 PM
Hello,
the CPU is consumed by  thread :
00 0f9cfc38 73e8cce6 54f4257d a19e0fe1 6632c59c ntdll_76f90000!NtYieldExecution+0xc
*** ERROR: Symbol file could not be found.  Defaulted to export symbols for AcroRdIF.dll -
01 0f9cfc3c 54f4257d a19e0fe1 6632c59c 6632c59c KERNELBASE!SwitchToThread+0x6
WARNING: Stack unwind information not available. Following frames may be wrong.
02 0f9cfc68 6632c556 00000000 cd06c41a 6632c59c AcroRdIF!DllCanUnloadNow+0xefb
03 0f9cfca0 6632c600 6632c59c 0f9cfcc0 74038654 msvcr100!_callthreadstartex+0x1b
04 0f9cfcac 74038654 0f9d6858 74038630 e63bfc17 msvcr100!_threadstartex+0x64
05 0f9cfcc0 76ff4b17 0f9d6858 a07f8235 00000000 kernel32!BaseThreadInitThunk+0x24
06 0f9cfd08 76ff4ae7 ffffffff 77019f61 00000000 ntdll_76f90000!__RtlUserThreadStart+0x2f
07 0f9cfd18 00000000 6632c59c 0f9d6858 00000000 ntdll_76f90000!_RtlUserThreadStart+0x1b

C:\Program Files (x86)\Adobe\Reader 11.0\Reader\AcroRdIF.dll

    Loaded symbol image file: AcroRdIF.dll
    Image path: C:\Program Files (x86)\Adobe\Reader 11.0\Reader\AcroRdIF.dll
    Image name: AcroRdIF.dll
    Browse all global symbols  functions  data
    Timestamp:        Mon Sep 24 04:47:21 2012 (505FC9B9)
    CheckSum:         0001B3AF
    ImageSize:        0001A000
    File version:     11.0.0.379
    Product version:  11.0.0.379
    File flags:       0 (Mask 3F)
    File OS:          40004 NT Win32
    File type:        2.0 Dll
    File date:        00000000.00000000
    Translations:     0409.04b0
    CompanyName:      Adobe Systems, Inc.
    ProductName:      Adobe PDF IFilter
    InternalName:     PDFFilter
    OriginalFilename: AcroRdIF.dll
    ProductVersion:   11.0.0.379
    FileVersion:      11.0.0.379
    FileDescription:  PDF IFilter
    LegalCopyright:   Copyright 1984-2012 Adobe Systems Incorporated and its licensors. All rights reserved.

Please try to update adobe reader to resolve the issue.
Thank you.


Title: Re: AvastUI.exe * 32 always uses 25% of cpu's resources.
Post by: NON on April 13, 2018, 03:55:50 PM
A Japanese user also reported this issue. I suggested to update Adobe Reader and will report back.


Edit: 4/13 23:27
In his/her case Adobe Reader seems not related. Uninstalling Adobe Reader does not solve his/her issue.


Edit2: 4/14 1:03
A Japanese user having the same issue uploaded dump files to the ftp.
  filename: AvastUI_ume3.zip
  pass: 218218
Title: Re: AvastUI.exe * 32 always uses 25% of cpu's resources.
Post by: XanderK on April 13, 2018, 08:46:38 PM
Repairing Adobe Reader XI didn't have any affect.
Removing Adobe Reader XI presents an error in regards to files being in use by Avat Antivirus, see attachment.
As I can't turn Avast off at this point would I like to know how to continue.



Title: Re: AvastUI.exe * 32 always uses 25% of cpu's resources.
Post by: XanderK on April 13, 2018, 09:15:40 PM
Changed Avast to passive mode, rebooted, removed Adobe Reader XI, changed Avast to active mode and rebooted.

Now Avast Antivirus reports to use hardly any CPU resources. However, the CPU usage remains quite high and now Windows installer reports a CPU resource usage of 30%.

This behaviour started after updating Avast to program version 18.3.2333.

Any idea what is causing this strange behaviour?
Title: Re: AvastUI.exe * 32 always uses 25% of cpu's resources.
Post by: kwiq on April 20, 2018, 02:25:49 PM
Hi Non
in your case it seems that there is Datascan thread which consumes CPU. I would try to disable datascan for a while - it might help
Thank you   
Title: Re: AvastUI.exe * 32 always uses 25% of cpu's resources.
Post by: NON on April 20, 2018, 02:56:14 PM
Hi Non
in your case it seems that there is Datascan thread which consumes CPU. I would try to disable datascan for a while - it might help
Thank you
Thanks, I forwarded this to the OP.
Title: Re: AvastUI.exe * 32 always uses 25% of cpu's resources.
Post by: NON on April 21, 2018, 07:13:50 PM
Hi Non
in your case it seems that there is Datascan thread which consumes CPU. I would try to disable datascan for a while - it might help
Thank you
Hi kwiq, the OP claims there is no way to stop "Datascan" (I believe this refers to "Sensitive Data Scan") because he/she users Free version of Avast, thus no way to stop/uninstall this component.
Title: Re: AvastUI.exe * 32 always uses 25% of cpu's resources.
Post by: lanshark4972 on May 02, 2018, 09:26:33 PM
Avastui.exe grabs close to 100% of my cpu upon booting.

I'm using Avast Free 18.3.2333 on up-to-date XP SP3.

I have zipped AvastUI Minidump.dmp and AvastUI Full Dump.dmp into the folder Dumps of avastui.zip and sent it per PK's instructions to the Avast Team FTP server, incoming directory. The upload was apparently successful.

Thanks, folks...
Title: Re: AvastUI.exe * 32 always uses 25% of cpu's resources.
Post by: kwiq on May 03, 2018, 09:07:16 AM
Hi lanshark4972,
I found 'Dumps of avastui.zip' folder.
It looks like there was DataScan task running in background.
To conffirm it please disable avast self defense for a while and rename  aswDataScan.dll -> aswDataScan.dll.org (C:\Program Files\AVAST Software\Avast\aswDataScan.dll) than enable self defense
and restart Avast UI. 
Let us know if it helped you.
Thank you
Title: Re: AvastUI.exe * 32 always uses 25% of cpu's resources.
Post by: lanshark4972 on May 04, 2018, 08:31:40 PM
It looks like there was DataScan task running in background.
To conffirm it please disable avast self defense for a while and rename  aswDataScan.dll -> aswDataScan.dll.org (C:\Program Files\AVAST Software\Avast\aswDataScan.dll) than enable self defense and restart Avast UI.  Let us know if it helped you. Thank you.

You nailed it, kwiq; thanks! I did what you suggested, rebooted, and that rascal avastui is nowhere to be seen. Moving right along: is there any problem with aswDataScan.dll being disabled?





Title: Re: AvastUI.exe * 32 always uses 25% of cpu's resources.
Post by: lanshark4972 on May 05, 2018, 04:38:10 PM

Yesterday:


You nailed it, kwiq; thanks! I did what you suggested, rebooted, and that rascal avastui is nowhere to be seen. Moving right along: is there any problem with aswDataScan.dll being disabled?

Today:

* AvastUI.exe now runs only 3 seconds or so, then quits with no errors, both at boot and when manually clicked.
* The Avast tray icon then remains but disappears upon mouseover so I have no way to see the UI--if it is running...
* Avastsvc.exe continues to run as a task, but Task Manager shows no cpu usage when I check it.
* AvLaunch.exe does nothing that I can see, and shows as v18.3.3860.0

Questions:

* Is Avast providing me active protection now?
* How do I get to my UI?


Using XP SP3 up-to-date & Avast Free 18.3.3860.316
Title: Re: AvastUI.exe * 32 always uses 25% of cpu's resources.
Post by: kwiq on May 09, 2018, 09:01:13 AM
Hi lanshark4972,
you can always rename aswDataScan.dll back and see if AvastUI.exe runs.
 start  "c:\Program Files\AVAST Software\Avast\AvastUI.exe"  process.

It seems that AvastUI.exe depends on aswDataScan.dll :-(.
I will ask my workmate how to disable datascan and not break UI.
Thank you   
Title: Re: AvastUI.exe * 32 always uses 25% of cpu's resources.
Post by: lanshark4972 on May 09, 2018, 05:35:23 PM
It seems that AvastUI.exe depends on aswDataScan.dll :-(.
I will ask my workmate how to disable datascan and not break UI.
Thank you   

Thank you, kwiq; remember that, in spite of the title of this thread, avastui uses just about 100% of my cpu
, so reenabling aswDataScan.dll doesn't seem like a good idea. Let's hope that your workmate is successful.
Title: Re: AvastUI.exe * 32 always uses 25% of cpu's resources.
Post by: JaffarShalan on May 22, 2018, 02:28:53 PM
as am not using the PC for long time, i am going to remove avast, and will keep my computer use the built-in antivirus, (using windows 10) for 1 month and will reinstall again the avast after they fix this problem ( i hope )

jaffar
Title: Re: AvastUI.exe * 32 always uses 25% of cpu's resources.
Post by: NON on June 20, 2018, 05:26:48 PM
Any news on this one? It is reported that latest Avast 18.5.2342 still has this issue.
Title: Re: AvastUI.exe * 32 always uses 25% of cpu's resources.
Post by: lanshark4972 on June 20, 2018, 09:34:11 PM
Any news on this one? It is reported that latest Avast 18.5.2342 still has this issue.

I gave up because of Avast's slow responses and lack of a timely solution. I removed Avast and went looking for an antivirus solution that wouldn't eat up the cpu on my XP desktop. I tried and passed on several, including Avast's evil twin, AVG. In the end, I selected and am happy with a free cloud-based AV, whose name I won't divulge because, well, that wouldn't be right...

 ::)
Title: Re: AvastUI.exe * 32 always uses 25% of cpu's resources.
Post by: bob3160 on June 21, 2018, 12:35:38 AM
Any news on this one? It is reported that latest Avast 18.5.2342 still has this issue.

I gave up because of Avast's slow responses and lack of a timely solution. I removed Avast and went looking for an antivirus solution that wouldn't eat up the cpu on my XP desktop. I tried and passed on several, including Avast's evil twin, AVG. In the end, I selected and am happy with a free cloud-based AV, whose name I won't divulge because, well, that wouldn't be right...

 ::)
Your computer, your decision.
Title: Re: AvastUI.exe * 32 always uses 25% of cpu's resources.
Post by: DavidR on June 21, 2018, 01:47:29 AM
<snip quote>

I gave up because of Avast's slow responses and lack of a timely solution. I removed Avast and went looking for an antivirus solution that wouldn't eat up the cpu on my XP desktop. I tried and passed on several, including Avast's evil twin, AVG. In the end, I selected and am happy with a free cloud-based AV, whose name I won't divulge because, well, that wouldn't be right...

 ::)

One of my systems is XP Pro SP3 and I have never experienced this excessive CPU usage.  Obviously I have no idea of your installation (what components, other security based applications, etc.) so I can't test it.  My installations are very minimal the basic security shields and no others.

Be careful of cloud AV protection, as in how does it cater for off-line useage.
Title: Re: AvastUI.exe * 32 always uses 25% of cpu's resources.
Post by: LeifW on June 21, 2018, 05:41:55 AM
Hi lanshark4972,
you can always rename aswDataScan.dll back and see if AvastUI.exe runs.
 start  "c:\Program Files\AVAST Software\Avast\AvastUI.exe"  process.

It seems that AvastUI.exe depends on aswDataScan.dll :-(.
I will ask my workmate how to disable datascan and not break UI.
Thank you

Has there been a response to this regarding the aswDataScan.dll file?  I too am experiencing 100%CPU usage on a Windows XP SP3 laptop.

Thanks,
Leif W.
Title: Re: AvastUI.exe * 32 always uses 25% of cpu's resources.
Post by: kwiq on June 27, 2018, 08:22:17 AM
Hi LeifW,
there is an option Enable=1 in DataScan section file: C:\ProgramData\AVAST Software\Avast\avast5.ini
Try to disable self defense and override it to Enable=0
Thank you
Title: Re: AvastUI.exe * 32 always uses 25% of cpu's resources.
Post by: DavidR on June 27, 2018, 09:59:12 AM
Hi LeifW,
there is an option Enable=1 in DataScan section file: C:\ProgramData\AVAST Software\Avast\avast5.ini
Try to disable self defense and override it to Enable=0
Thank you

I'm interested in why this might effect some XP systems but not others ?

Also, considering AvastUI.exe is meant to be for the control of the UI, why is it apparently (CPU % usage) now involved in a security related function/required file, e.g. the aswDataScan.dll ?