AdVirus.exe Problem, It is Deadly, disabled my Task manager in less than 2 min :(

[kashish0711]

Please help me out

I accidentally opened a USB of my friend without scanning it, and now a virus namely

Advirus.exe is in my PC

It freezes my PC, does not allow task manager to appear on screen for more than a fraction of a second, even deleted the search window of my PC
I can't even manually search and delete it

Please help me out, I don't want to loose precious data, it has started making fake exe folders in my PC

Pls help urgent

 

[kashish0711]

I even scanned with "AVG 8.0 and Spyware Doctor 6" in "safe mode"
still it is not deleted, it is Fully Undetectable Please help me soon friends.