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
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.
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?
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: 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…
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.
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
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.
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?
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.
It didn’t bring my PC to a crawl though, what I noticed was that it ate my RAM, nearly the entire 4Gb of it, and an hour and a half to do everything (now that is fast compared to McAfee, one that I used before). I rebooted it the PC and unchecked the persistent cache. What took me 20-35 minutes with Avast 4.8 only took 12 minutes with Avast 5. It scanned almost 40Gb in size (PC specs are in my sig).
I don’t mind the wait. Hence I am keeping Avast not to use the persistent cache, since I want things done like it was not scanned before, just to be sure.
Just familiarize yourself with the settings. I am also using it on a slower machine. And the 40Gb it scanned on two drives took over just around 35 minutes.[/color]
Fixed the slow computer response problem. Seems there was a problem installing Avast 5 over Avast 4.8. I used aswclear and followed the instructions here: http://www.avast.com/uninstall-utility
My computer and antivirus are running fine now. If anyone else experiences this, go to the link above to uninstall 4.8 and then reinstall 5.0.
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.