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When updating AVG today, I received the error "Invalid Update Control CTF File". After searching the AVG support forum, I found a couple of easy solutions which can resolve the error.
Note: (Nov 03, 2009): AVG Team is working on this issue and should fix this update issue soon. No user action is needed. The following methods worked for some users, though.
Method 1
1. Double-click the AVG icon in the Notification area.
2. Click the Tools menu and click Advanced Settings…
3. Navigate to the Manage option in the Update branch.
(The Manage option is included in AVG version 8.0.233 and higher.)
4. Click the Delete temporary update files button.
5. Click Yes to confirm removal.
See if you’re now able to update AVG.
Note: The above button deletes all the temporary files, downloaded .BIN and .CTF files which were created by AVG. Whereas the Vbscript file included under "Method 2" deletes only the .CTF files.
Method 2
From AVG forum:
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.
There were two .CTF files (avginfoavi.ctf and avginfowin.ctf) in that folder, and deleting them fixed the problem indeed.
Note: The Application Data folder is hidden by default. You need to enable Windows Explorer to show hidden files in order to view the Application Data folder. Alternately, type the above folder path in the Start, Run dialog and press {ENTER} to launch the folder.
Windows Vista users: Delete the .CTF files from the following folder:
Script to automate the task
I’ve scripted the above so that it can help if you want to run the task in multiple PCs. Download del_avg_ctf.zip and save to Desktop. Unzip the file and run the script del_avg_ctf.vbs. The AVG Update .CTF files should be deleted automatically. The script runs fine in Windows XP and Windows Vista systems.
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Thank you. First option worked for me.
thanks.. :)
yeah i got it fixed …!!!.. method 1!!
cool post!!!
thank’s a lot, it worked… :)
thanks! Loads of help.
Thank you! I was getting distressed but you helped me fix the problem. THANK YOU!
I just removed AVG8.5 for now. I’m entitled to use McAfee full edition for free anyway as it comes included in my DSL provider package. However, when I switch provider again I may reinstall AVG again as the free products do their work and nothing more than they should do (such as taking up too much disk space, cpu %, creations of all kinds of unwanted additional tools and actions where you didn’t ask for).
Anyway, I never had this error before. I left my laptop on all night long because there were some big files that still needed to be downloaded via a p2p tool.
This morning, I had this error on AVG, but I also had 2 mediaplayers giving me malfunction errors: ‘Nero AG Home has stopped working properly’ and ‘Nokia Music has stopped responding’.
Now, everytime I restart the laptop, I get these errors. I stopped startup services for both these tools now, but I didn’t change anything about the configuration last night.
Is it possible that this error with AVG 8.5 is in anyway related to the problems I am now experiencing with Nero AG Home 8, Nokia Music and my downloads via Vuze? I use Vista Business Edition English.
Thanks.
After trying a couple of other recommended methods which I found in forums, I ended up resorting to uninstalling AVG Free and reinstalling it.
Thank you for this easy fix to the .ctf file error! Last time I got this I uninstalled/reinstalled the program as I’m no comp wiz, but this worked after a restart, no prob! I have had this error many times in the past, but hopefully is no longer a problem, thanks again!
it worked for me, thanks very much for the assistance.
Thanks. I had tried with the 1st method and it helps me.