NOD32 virus alert when trying to install MGtools

I could not believe my eyes - I have something on my computer, so I started downloading and scanning as it is indicated in "malaware removal guide" - all well and swell, untill I try to install the MGtools, and then my NOD tells me:
Alert details:
File: C:\MGtools\Process.exe
Threat: Win32/prcview application
Comment: Event occurred on a new file created by the application: E:\MGtools.exe. The file was moved to quarantine. You may close this window.

What can I do next?

I have to add that I was not able to inslatt combofix, either - a file or something was corrupt.

 

Ooooh, I got it! Honestly, I never-ever thought about disabeling my anti-virus! I'll disable my antivirus, run all the scans once again and post them here.

Thank you!