Hello everyone! I've been reading and re-reading this thread ever since it started last month and I think bbfi may've found the cause of his problem in his very first post when he asked if it could be Microsoft's updates and patches. Let me explain...
bbfi's computer stats are similar to mine. I've also got
512mb ram and my processor's a Pentium 4 at 1.8 ghz.
I'm also running XP home.
Avast is a GREAT antivirus, but yes, it does use a lot of memory. If I boot up and just let my computer sit for a while and then check task manager, avast is using between 18,000k and 22,000k of memory. McAfee 7 and Norton 2003 each use between 7,000k and 8,000k of ram and AVG-6 Free uses around 1,500k. BIG DIFFERENCE! However, 512mb ram is more than enough for avast and other applications. I checked all of these with clean installs of XP and I do not have more than one antivirus on my computer.
With Windows Updates, my computer will slow to a crawl (with avast) after 3 to 4 hours. Rebooting solves the problem for another 3 to 4 hours. Cycle repeats. If I uninstall avast and use any of the other antivirus programs mentioned, no problem.
Now, if I do a clean install of XP and DO NOT install any Windows Updates, there is no problem with using avast.
I do not believe avast is the cause of any problem. Rather, it could be a trigger with something in one or more of the Windows Updates.
I've said this repeatedly in other threads -- several computer companies (HP and Dell especially) are 'unofficially' telling customers with problems not to install Windows Updates. There are many people who have slower computers and less ram but have no problems using avast and having Windows Updates. This is what is so perplexing. Just read the online forums and you'll find complaint after complaint about computer performance and Windows Updates. Some computers work with them, some don't and there's no concrete reason discovered yet why this is so. bbfi and I may be some of the 'chosen' whose machines simply don't like Windows Updates.
I make a radical suggestion to bbfi to try and solve the problem once and for all. Wipe your hard drive, reformat and do a clean install of XP. TURN OFF WINDOWS UPDATES, install avast and see what happens. If the problem persists, then it's possible bbfi's computer just doesn't like avast. I know of several cases where a computer just won't work with some programs or software, regardless of how good they are.
Personally, I think avast is fabulous and the avast team is superb. And, if my computer works with avast better without Windows Updates, then they go -- not avast.
Dave