Hmmm... might be spyware related, although it doesn't sound like something too malicious. You still might check it out in the Malware forum.
Prefetch is located C:\Windows\Prefetch. Basically, Windows looks at the Prefetch folder at Startup and "partially loads" or "pre-loads" everything in this folder into ram, so if you ever start up a particular app, it will launch more quickly because it is partially pre-loaded. Depending on how fast your computer is, there is little need for Prefetch entries. Some may disagree, but I don't allow Prefetching at all.
CCleaner is more powerful than ATF cleaner, in that it will also mess with the registry entries. Sometimes if the user doesn't know how to use CCleaner, they can mess up their computer. ATF cleaner is "safe" in that all it does is dump trash from the temporary folders on your machine. Apps sometimes create temp files (lots of them) during install, and even temporary internet files are stored in temp folders. Over time, these files build up, which can slow down your machine. ATF will clean them out without damage.
Download HijackThis from my signature. Run it and save a start up log. Attach the log to your next reply. Please do not paste the log... just attach it so I can download it.
Edited by makai, 22 March 2009 - 04:25 PM.