By Thilak November 15, 2008

Fix “Invalid Update Control CTF File" Error in AVG 8.0

avg8-logo I use AVG 8.0 Free with Vista. AVG 8.0 normally checks and updates its virus definition automatically, but since the past couple of days it was not updating automatically. When I try to manually check for updates, I received this error message “Invalid Update Control CTF File”.

After doing some research, I found the solution to this problem on AVG forum. You need to remove the CTF temp files in C:\Documents and Settings\All Users\Application Data\Avg8\update\download. There were two files in that folder – avginfoavi.ctf and avginfowin.ctf, deleting them solved the problem and I was able to update AVG 8.0 with latest virus definitions.

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Discussion

Comments for “Fix “Invalid Update Control CTF File" Error in AVG 8.0”

  • Umesh
    Thanks. It works. thanks for solving the problem.
  • Is this problem unique to Vista? I run XP and AVG, haven't noticed any issues recently.
  • As you know, I never did switch to Vista!
  • I now use ClamWin on my laptop, it's just as effective as AVG, but uses less memory. Check it out and try it out. I'm still on Windows XP though, I doubt I'll make the move to Vista. Just waiting for Windows 7 for a potential upgrade, but other than that, I'm still very happy with my XP.
  • Suressh Nair- India
    thanks for the tip, it work beautifully now... cheers
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