Blog Marco

I keep getting this error popup box in the corner of my screen from AVG Free Antivirus. Error says: "Invalid Update Control CTF File". I've got Windows Vista and this isn't the first time this stupid error has appeared. And the consequence is that the virus definitions file isn't being updated.

In Vista, to fix this "" you'll need to go to" C:\ProgramData\avg8\update\download (open up explorer by pressing WinKey+E and pasting that address into the address bar). Then delete the two corrupted CTF files in that folder: "avginfoavi.ctf" and "avginfowin.ctf". Now open up AVG Virus (double click its tray icon) and click "Update Now" - this will now download a new CTF file and refresh your virus definitions.