I have Windows Vista, Service Pack 1 on an HP a6142n with AMD Athlon 64 x 2 Dual Core Procesor 4400+ 2.3 GHz. RAM = 2GB. 32-bit OS. I have hard drive space used of 220 GB and free of 143 GB.
My machine has been getting what seems like progressively slower and slower until it is almost unworkable. I've also seen strange symptoms, like the sound on the solitare games no longer being heard. Trying to open up Internet Explorer (8.0.6001.18928) sometimes takes several minutes. Opening a link from there sometimes is either slow or doesn't even work. Sometimes it seems to go somewhere else before the page opens up.
I wondered if there was a virus or something. I normally use Spybot Search & Destroy, and Norton Internet Security. I update weekly, and did full scans of both with no problems found. I also did a Trend Micro scan from online, and then loaded SuperAnti-Spyware, which found 474 tracking cookies, which I deleted. I autoload all the Windows updates as they come out.
I did a disk defragmentation, as well as clearing out all temp files, internet history, etc. Nothing seemed to speed it up. I haven't loaded any new programs in eons, although my hubby sometimes downloads documents from the web. I've tried to cleanup everything I could, but nothing seems to help.
I ran an AutoRun (after seeing that in another post), but I'm not really sure what I'm looking at. I'm approaching my maximum knowledge point. I looked at all the processes that were running (via task manager) to see if there were things starting that didn't need to be, and tried to match them up with the Database I found here. Several of the entries (8) were not found, and 6 said they were user-optional, but I didn't want to delete anything without advice. I was puzzled by the rundll32.exe being listed twice, and iexplore.exe being listed 3 times...but don't know if that is relevant.
I'll try to provide any other information that might help troubleshoot this, as long as you give really basic directions. I didn't put this in malware forum, since I couldn't find evidence of it.
Thanks in advance.