I am trying to fix my brother's computer for him. The original symptoms were that the computer ran extremely slow (like it took an hour to boot up into Windows Vista...hold the jokes please).
After quizzing him a bit and finding that he was downloading a great deal of MP3s from rather suspicious sites, I assumed he had found himself one or more viruses. So I then formatted his computer and installed Windows 7. However, during the installation, I noticed the disk still seemed extremely slow. Once I finally got Windows installed, I tried to boot again but it just hung (or was very slow - I didnt wait to find out).
Anyway, I once again booted off the CD and ran CHKDSK. It returned no errors or any issues whatsoever. So, I am now stuck. I cant boot the machine (Windows starts to boot, but never finishes). I cant seem to find any apparent problems. Does anybody have any suggestions of where to start or what I may be missing? I am completely stumped at the moment.
Updates The CPU is a dual core AMD. The computer just got slow one day according to my brother. However, it seems to be a hard drive problem. The computer works great if I do not acces the hard drive (boot off a CD for example). I checked the SMART and everything came across good there as well. I am really stumped.