Posted 09 October 2008 - 03:23 PM
I am still having a problem with my internet and I hope someone out there can help. I have a Dell Dimension desktop that is about one year old. It runs Vista 32bit SP1. It shows 165G free of 222G total. It is hard wired to an AT&T modem. About one month ago, while working on the internet, I noticed it became very slow and sometimes froze up. I also noticed the computer sounded like it was processing something the whole time and the disk light was lit constantly. Offline work is fast and normal with no problems noted. I performed scans with AVG, Spyware Terminator, and Spybot and nothing was found. I've cleaned the thing numerous times with CCleaner. I've run the disk defragmater and disk cleaner. I then did a Symantec online scan which found a backdoor trojan. I was able to remove that but the problem still persisted. I posted a topic on BC and was contacted by a moderator and he went through numerous steps with me to find the problem. He took me through every scan, including Hijackthis, ESET scanner, and Malware Antimalware, and found the computer to be "clean", but the problem is still going on. My task manager was showing that iexplore.exe and explorer.exe were both running during internet use at around 50,000 each. At times I would also have around 15 "svchost"'s running also in the 1,000-4,000 area. I tried going through and ending each process and items on the computer would shut down. I've contacted my ISP and had the modem tested and it shows it is working correctly. The laptop and xbox running off the same modem are running normal. I've done a speed test on the internet speed and it shows I'm receiving service at the correct rate. So I've had everything tested and its still running so slow its like having dial up again, with pages taking around 10-15 seconds to load with it freezing up sometimes and kicking back in around 30 seconds later. At other times, the pages load quickly, but I can't click on anything for around 10 seconds. I don't hear the computer "running" anymore but there is still obviously something wrong.
The one thing I did notice that really got my attention was when I thought I still had the backdoor trojan, I was using disk cleaner on the AML Free Registry Cleaner. When I used it to search and remove TIF files, it would find thousands of them on my computer everytime I got off the net. When I would look to see what these files were, they would be every single little picture, icon, etc. off of the websites I was visiting. I don't know why my computer was holding all of these files all of a sudden or if thats normal.
So my question is, since everything tests correct up to the computer, what could have gone wrong inside the unit itself? Is there a driver or processor that could have gone bad, and if so, how do I test for that? Again, offline work is normal so I don't think its a virus. I really could use some help on this because it is a business computer and working online is so slow and aggravating. I hope someone can help.