Adware:Adware (or spyware) is a small program that is designed to show advertisements (in various form and degrees of intrusiveness) on your computer. It often reports personal information back to its owners. As a result your sense of privacy can be violated.
Winclean, which is possibly related to the SpyBot worm virus, is a malicious program that installs itself on your computer through deceptive mechanisms. Once installed, it will load itself each time you start your computer, and will download additional malware to your computer. Winclean represents a serious threat to your PCs security and should be removed immediately.
Technical details (How to remove Winclean(pop up))