recently whenever i loaded up ie i've been redirected to updatescenter.com. i did a scan in hijack this and found this bho as the culprit:
O2 - BHO: HomepageBHO - {893fad3a-931e-4e53-b515-b1426d63799b} - C:\WINDOWS\System32\hp4D24.tmp
so i removed the entry and the corresponding file in safe mode but when i rebooted the entry was back, and so was the file only now it had a different name hp2F93.tmp, so i assumed something in the registry is renewing and randomizing the bho. even with the internet disconnected whenever i start the browser it goes in to a mad refresh frenzy to redirect to updatescenter.com. then i searched for the key {893fad3a-931e-4e53-b515-b1426d63799b} in regedit and found and deleted the key under explorer help objects, but the problem is still there. no spyware programs are picking this up. can you help? thanks.