Hello,
When I scan my computer, I regularly find the “Win32:Ransom [Trj]”, identified by Avast for googledesktop.exe. But Avast does not allow to me to delete or quarantine it.
On Internet, I found various kinds of Win32, but they do not appear to be the same as mine.
Does anyone have an idea of the solution to eliminate it?
Is it really dangerous?
Thanks for your help 
Didier
follow guide and attach the logs…not copy and paste http://forum.avast.com/index.php?topic=53253.0
AdwCleaner
Malwarebytes
OTL
aswMBR
when done a removal specialist will be notified and help you