What happened to my machine?

Help guys....something stole my background and will not let me get rid of it, nor install a new one.

It is a big black lable, with red woords, that reads, "SPYWARE INFECTION" and "your system has been infected with spyware. Window recomends that you use a spyware removal tool to prevent lost of data and increase system performance. Using this PC before having it cleaned of spyware threats is highly discouraged."

Sad thing it I have tried several and they can't help.
I have use:
Ad-ware SE Personal
Super Utilities
Ewido Security Suite
Microsoft Antispy
and
Norton

any ideas?

 

This is nothing but a scam to get you to buy spyware removal software !

Go to your Desktop -->Right Click -- Properties -- Desktop TAB --- Open Customize Desktop at the bottom and click the WEB Tab open.

Remove what is there that should be blank !

 

Thanks....but that didn't work. It even has my background stuff locked.

 

This looks like SpySheriff adware ! This place here can help you if it's that --- you not giving details of what you have , so I cant help you more then guessing !

http://www.bleepingcomputer.com/for...Sheriff_Winstallexe_Spysheriffexe-t22402.html

 

Thank you very much...Hijack this worked and my machine is happy once again.