You also could run an on-line scan:
Please run the Housecall online virus scan located at:
Follow the prompts to scan your hard drive for viruses. Select the "Autoclean" option so that Housecall will remove any viruses from your system.
When the scan is finished, please restart your computer.
When was the last time you defragged your computer?
How to Defragment Your Disk Drive Volumes in Windows XP
I've been having some trouble with my computer for quite some time now and I think that it must be a virus or Trojan of some sort. Let me make this as brief as possible, my computer has two HDD's, "C" and "D", the one I'm having trouble with is the C drive which has 15GBs. The problem is that the drive gets used up and I get those "you are running out of space" messages on the task bar, and if I check on the drives properties sometimes it reaches O bytes of free space. If I explore the C drive and check the properties of each folder in there, which only 4 show up (Documents and Settings, Drivers, Program Files and WINDOWS) they don't add up to the full 15GBs, that's why I think that there's something wrong and possibly something else is hiding all that memory.
My computer is a Vaio PCV-RS 520 running Windows XP.
Please let me know if you have any tips or info to solving this problem, thanks for your time.