Hello, I've been working on trying to clear a virus from a friends computer. When he opens a browser, and uses Google, Yahoo or Bing, he gets redirected on SOME of the links...to wierd sites or alternative search results. Also two boxes (Flash popups) come up in both corners on websites, both legitimate and redirected websites, so whatever it is, I guess its infected the browsers. Ran Malwarebytes, cleaned the system, and it STILL does this. Is there anyway to fix this without re-formatting? I've run Malware Bytes, and Microsoft Security Essentials, neither have found anything. I've run quick and full scans in both. With no results, any ideas?