Free cleanup programs

free AVG Anti Virus	a-squared Free
SpywareBlaster	Spybot Search & Destroy
CCleaner	CleanUp! Home
ATF Cleaner	RegScrubXP
Eusing Free Registry Cleaner	SuperAntiSpyware
Malwarebytes	saved space

bitdefender - Free Online Virus Scanner
Ewido Free online malware scaner

check this out Stop a lot of the junk that is downloading while using ebay