Don't refer someone to another thread for help "unless" it's a known Windows problem with 'standard' information or fix.
The referenced thread has Attached Files
File Type: txt AVG Anti-Spyware - Scan Report.txt (13.8 KB, 2 views)
File Type: txt ComboFix.txt (13.8 KB, 3 views)
File Type: txt ComboFix.txt (13.8 KB, 3 views)
Plus File Type: log: hijack log
But there is NO mention that these files were event consulted! Hijack Logs are specific to the user, but it appears no review was even done.
There are other questions on this board about the Google Redirect, but the consensus appears to be that it is likely malware causing it. It would be wise for you to follow the instructions that kitty500cat has given.