Fix for Invalid Update Control CTF File error (AVG Anti-Virus Update)
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Invalid Update Control CTF File
Solution 1
I have found the solution from AVG forums
You need to rename/remove the CTF temp files in C:\Documents and Settings\All Users\Application Data\Avg8\update\download…. Dont delete all the .bin files in there unless you want to re-run all updates since your original installation (reinstallation seems to cause a problem in IEs Link Scanner which causes IE to Crash). Only rename/remove the avginfo files that end with .ctf
For Windows Vista users
Go to the following location
C:\ProgramData\avg8\update\download
Delete the following 2 files
avginfoavi.ctf and avginfowin.ctf
Solution 2
You can also download and install AVG Mechanic from here
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hi tnxx for advice yes i can fix the anti-virus hehe:D
Thank you!!! Fix for Vista worked perfectly!
It worked for vista ultimate… thanks for the post
Thanks. Works great on Vista.
I dont have an application data folder! What do i do now?
i also didnt have apppicattion data also how to do now???somebody please teach me
when i run the AVG mechanic it says “no CTF files were found” please help.
i ran AVG Mechanic . it say that i don’t have any CTF files.
but the problem is still there can not update ctf file missing.
Thanks.. It works perfectly..
Happy new year.
Thank you very much, it worked perfectly.
I’ve just installed AVG trial on my 2003 server and I get a message “The application failed to initialisze properly (0xc0000005) … how can I rectify the problem ?
thx!! it works!! =)
I have the same problem as many others. when i run AVG Mehcanic it says no CTF files. HOW DO I FIX IT.
I had the same problem with no CTF files found in C:\Documents and Settings\All Users\Application Data\Avg8\update\download.
After having tried everything, I finally found the answer on AVG site : http://freeforum.avg.com/read.php?13,164852,164852,backpage=,sv=#REPLY. This user explains how to get rid of Trojan that prevent to do correct AVG update.
And now all is fine for me.
Cool this worked, fixed it in 2min
even i have the same problem…… there are no .ctf files in that folder…
And what is told here: http://freeforum.avg.com/read.php?13,164852,164852,backpage=,sv=#REPLY –>> is perfectly correct . it changes ur dns servers[trojan].
may be reinstalling will do the trick.
damp@rediffmail.com
plz help i have ctf files that it wont update it wont del them with avg mechanic
thanx its working for me..
On a brand new computer with WindowsXP, a clean install of AVG 8.5 (4/28/2009) I get the “Invalid CTF file” message. I tried reinstalling, didn’t work. There are no .ctf or .bin files in the download folder of application data…
I downloaded today’s AVG definitions (a .bin file) and manually installed them successfully. This put a .ctf file in that download folder, but still when I ask it to update I get the same error message. Scanning with AVG and Malewarbytes did not turn up any infections…
What the heck do I do???
A solution that worked for me:
http://free.avg.com/faq.num-1567#faq_1567
Please kindly follow these steps to delete mentioned control files:
* Run the AVG Free user interface (double-click the AVG Free icon on your desktop).
* Open the Tools -> Advanced Settings… menu.
* Navigate to the Manage option in the Update branch.
* Press the Delete temporary update files button.
* Try to update AVG Free.
Ty *Frank* that option did help me, unlike the other options, for vista it worked.