Posted 23 September 2010 - 11:16 PM
I originally posted this on the "Am I Infected?" forum, but it appears Malware isn't the issue.
Before I start, just know that I've tried everything in the "Slow Computer?" sticky in the "Am I Infected" forum.
My laptop used to be pretty fast. I've been kind of a computer geek for a while and I've been happier with this computer than any other I've had. Something happened, though, and now my computer runs EXTREMELY slowly. It was a gradual process that took place probably over the course of about 1-2 months. It started when I noticed that, when typing, my computer would occasionally skip a letter. When it first started, it was very rare, but it eventually got worse little by little.
This gradual process went from the occasional missing letter to other weird things happening, such as when I would click the wireless connection button on the bottom right of my taskbar, it wouldn't show anything, whereas it was supposed to list the wireless connections. Instead, it would occasionally open a browser. Even now as I type, I can hear tiny little error message sounds, except they're really short and really quiet and only happen when I type.
Another interesting thing was when one time I ran a scan with Malwarebytes' and SuperAntiSpyware and it found an infection, got rid of it, and since then my explorer.exe has been screwed up. When my computer starts my desktop disappears (the taskbar stays) and I can't right click on the desktop. However, if I kill the explorer process and then restart it, the desktop works fine. Also, rkill.exe used to run in around a second or less, but now it takes around 10 seconds. It still doesn't find anything, though. The volume control graphic also takes forever to change when I turn up/down the volume. It seemed at first that the slowness of my computer accommodated the original trojan I had, but it's gone now and my computer's still slow.
I normally run SuperAntiSpyware, Malwarebytes' AntiMalware, AVG, VundoFix, and SpyBot. I've found small infections with them before, but not a single one is showing anything at the moment. I honestly have no idea what's the problem. The symptoms are almost as if it's a hardware problem considering how slow my laptop is, but the signs tell me it's a software issue. I'm completely stumped. Any help I could get would be wonderful.