playBunny: It is about 5 years old. The HD was replaced a year ago. It was full of viruses then too. It was freezing up like it is now and everytime I re-boot it...when the windows logo and info comes up on start...It shows a message that there is an error in the files and that it is recommended to allow it to check the file system. Each time it always finds finds files that need to be truencated. The technician that we took it to at that time told me that when that message comes up about checking the files that it means the HD is about to go out....so we had him to replace it. Now it's doing the same thing, I did check the fan on the cpu and it seemed to be blowing good.
playBunny: Yes, It freezes completely so the mouse won't move. I have to reboot it manually. Task manager doesn't come up by pressing Ctrl-Alt-Del. It hangs randomly...not certain time frame in between. Yes, I opened it up and cleaned the inside. It has 3 fans and I cleaned them inside and out. The sides don't get hot.
harley: It is my husbands computer. We have cable and our computers are networked. The cable from mine runs directly to his. It freezes up in any program. If it was the connection, wouldn't mine freeze too? I never have any problems with my puter. I gave his a good cleaning a while ago and it is still freezing up. Could it have something to do with the XP home edition? Could the disk have been corrupted somehow? I am thinking about installing my XP professional on his and see if that will work. The only other alternative I can think of is to change the HD. At one time he had over 100 virus infected files. The only way I could get rid of them all was to completely erase the HD. Could those viruses have damaged the HD?
Thank you all for your help. I had run our of ideas. I have already completely erased the hard drive and re-installed everything and it is still freezing and have to re-boot constantly. I will give it a good cleaning and see if that helps.