Avast 5.0 free final brings system to a crawl

[nightwolf00]

I have been using Avast for a long time and I must say it is the best AV I have ever used.  Just FYI..   I just uninstalled 4.8 today to try the new 5.0 free AV and I am unsure what is happening.  It brings my computer to a crawl.  Everything is very slow.  Opening firefox takes a few minutes versus a few seconds.  I had to reboot into safe mode to completely uninstall it and reinstall 4.8.  Since I reinstalled 4.8 it is working fine.  Also, rebooting into safe mode allow my computer to run at normal speed.

I checked to see if process was using 100% of CPU time and there was nothing.
I am running Windows 7 x64 on a Dell E1505 with a Core 2 duo T7400.
Is it possible that somehow Superfetch was disabled??
Anything like this show up in beta testing?

Any help would be appreciated.  BTW...I like the new interface of Avast 5.0 as well 

Thanks

Brett

[RejZoR]

Works fine on Atom based netbook that's far weaker than yours. No problems. Must be some other conflict or something.

[Hodag]

I noticed that mine was a little sluggish for the first few minutes.  I don't know if that was do to Avast updating something or what.  However, after 5-10 minutes the performance went back to where I expect it to be so I suspect it was just something to do with the new install.

[Vlk]

I noticed that mine was a little sluggish for the first few minutes.  I don't know if that was do to Avast updating something or what.  However, after 5-10 minutes the performance went back to where I expect it to be so I suspect it was just something to do with the new install.

Yes it might have been the "persistent cache" being populated.

[nightwolf00]

Thanks for the responses.  I am unsure as to what the conflict could be.  I also tried turning off the file system protection and behavior  module, but that did not fix it.  It was actually quite strange, that as programs (firefox etc) were trying load I had no hard drive activity (no clicking and hd light wasnt flashing).  I am now back to 4.8 and everything is great.  I guess I will stick with 4.8 and maybe it will be fixed in a future release.  I am running office 2010 beta,  could that have anything to do with it?

Thanks in advance.

[DavidR]

Stick with 5.0 as Vlk mentions, avast 5 has a persistent cache and the first time things are scanned the persistent cache is gathering data to speed things up in the future, so try to give it some more time.

[BRANDONN2008]

I don't quite understand the persistent cache. It makes it sound like a clean file will never be scanned again. Couldn't it be infected later?

[coolsilver]

First boot will take some adjustment for your system. After a day or so it will be back to normal speeds.

I also been using Avast 5 on an Atom netbook with little slowness issues. All other issues were worked out in beta.

[sg09]

@brandonn2008: Persistent cache helps to speed up manual and on access scan. Only NEW and CHANGED files are scanned. So, if a file will get infected later it will be in the catagory of a changed file..

[TankoBG]

In first - sorry for my very bad English language!
In second - this morning i test new 5.0 version of Avast! Free.
Full shit!!!
In this moment i return to version 4.8 in my computer!

New 5-th version make my computer very slowly, interface is very bad, settings is not good and dependable.

Sorry developers! You work is bad.

[yihtang]

Thanks for the responses.  I am unsure as to what the conflict could be.  I also tried turning off the file system protection and behavior  module, but that did not fix it.  It was actually quite strange, that as programs (firefox etc) were trying load I had no hard drive activity (no clicking and hd light wasnt flashing).  I am now back to 4.8 and everything is great.  I guess I will stick with 4.8 and maybe it will be fixed in a future release.  I am running office 2010 beta,  could that have anything to do with it?

Thanks in advance.

I'm a beta tester of Office 2010 as well.  My computer specs are:
512MB RAM
40GB HDD
Intel Pentium 4 (2.4GHz)
No Graphic Card
Running windows XP Service Pack 3

everythings work very fine.

[watchthisspace]

In first - sorry for my very bad English language!
In second - this morning i test new 5.0 version of Avast! Free.
Full shit!!!
In this moment i return to version 4.8 in my computer!

New 5-th version make my computer very slowly, interface is very bad, settings is not good and dependable.

Sorry developers! You work is bad.

First off, don't swear. That's rude. In all languages.

Second, please describe what's happening to your computer, as VLK described before, it could be the persistent cache being populated, give it some time and a reboot and I'm sure your computer will return back to full speed.

I'm running Avast! on 2 computers. One is a netbook, and it runs the same as 4.8.

Please, before you bash the developers, let us try help you.

[chriswyatt]

I'm finding aswSP.sys is using a lot of CPU on my setup (it comes under the SYSTEM process), is this the persistent cache?  If I leave it long enough will it stop eating CPU?

[nightwolf00]

Thanks for the help guys! It is greatly appreciated.   I will try Avast 5 again in the next few days and let it go for a day and see if things return to normal to test the persistent cache.  I will post again if I still have trouble or if it is solved.

Thanks

[TankoBG]

First off, don't swear. That's rude. In all languages.

Second, please describe what's happening to your computer, as VLK described before, it could be the persistent cache being populated, give it some time and a reboot and I'm sure your computer will return back to full speed.

I'm running Avast! on 2 computers. One is a netbook, and it runs the same as 4.8.

Please, before you bash the developers, let us try help you.

Sorry, sorry for bad words... Avast! Free is my favorite program from many years. Therefore I react strongly...
1. After install of 5-th version I waited 1 hour. In 30 min. speed of computer is rise, but not like before.(Hewlett-Packard HP d530, 2.8 GHz)
2. I test to update definitions with correct proxy setting, without result in 5-7 min. waiting....

May be I am wrong... but program should have warned me that creates cache, and should have warned me of unable to connect.