Download Process Explorer from
http://live.sysinternals.com/procexp.exe in C:\ folder. Rename procexp.exe to explorer.exe and run the program. Find and terminate all suspicious processes using Process Explorer (likely there will be randomly named processes, for example xy59a.exe ir similar). Then download one of the anti-spyware applications listed here:
http://www.2-spyware.com/compare.php
I recommend Spyware Doctor or MalwareBytes anti-malware. Scan your computer and remove Google redirect virus.
Good luck!