Invalid Update Control CTF File AVG 8.0 Error on Vista
Since the 24th October I’d been getting the error “Invalid Update Control CTF File” when trying to update AVG 8.0 on my home PC. I think I remember having this before and it went away after a few days, so I had been ignoring it until today.
Anyway, I found two control files for AVG in the folder “C:\ProgramData\avg8\update\download”, as shown below
I simply renamed them both and then selected “Update Now” after right-clicking the AVG icon on the application tray.
The update applied successfully and now all is well. 