Anti virus and firewall are fine but dunno how to sweep 4 spyware. can u tell me?

Antivirus, firewall and windows all up to date on critical patches? Have you swept the system of spyware?

Download  Spybot S&D and AdwareSE Personel, update both once installed and run one after the other.

Do a google search for the websites to download from or go to download.com

Both are free and will do a fair job of finding and spyware, and correcting it.

 

How long has it been since you went to Internet Options in Control Panel and on the General Tab clicked Delete Files? If you have not done this for a while, it may take a while to "haul the Trash". There is also a tab to Delete Cookies, but try the Adaware to clean out the malicious ones first. You can also click settings View Files and delete some of them manually. There is a particularly persistent ad service called Omniture which even Adaware does not pickup and delete. It puts in cookies that start 1shz2prbmdj and after a long string of gibberish at the very end omniture.com. The long string of garbage is apparently the reason Adaware does not pick it up on its scan. I cleaned these out manually yesterday and they are back, as I just looked.

Delete the contents of these folders

C:\Windows\Temp

C:\Windows\Prefetch

C:\Dell\Drivers (yes, the original drivers are installed and these are disposable)

Delete all internet files (Internet Options - Delete Files - Delete All Offline Content)

Also run a check on the disk if bad sectors are building up. (Right click the C: in My Computer and Tools, Check Now)