Having the latest antivirus program and also virus definition signature is very important to keep your computer safe from latest threats and also stability. All antivirus program has their own convenient built-in updater for you to easily update the program and virus signature. However, I noticed that the latest AVG 8 program updates seems to have lots of problems if compared to other antivirus program. Some of the error messages that I know of are “a bin file is missing”, “General error – not enough free memory, write error”, “AVG update process could not be finished due to insufficient free disk space or insufficient user rights. Disk space is fine.” and the latest one is “Invalid Update Control CTF File Error”.

One of my client’s laptop had AVG8 installed and he kept on getting the Invalid Update Control CTF File Error whenever he wants to update AVG8. The most common way of fixing a software problem is to reinstall. Unfortunately I tried reinstalling AVG8 on his computer but couldn’t fix the Invalid Update Control CTF File problem.
Finally I found an easy solution to fix the Invalid Update Control CTF File error problem during update.
Searching for CTF file on my client’s computer revealed that there are 2 CTF files which is avginfoavi.ctf and avginfowin.ctf used by AVG8 and located in All Users application data folder. I noticed that every time when you check for AVG updates, the AVG8 update manager will check the avginfoavi.ctf and avginfowin.ctf files in the update server.
Simply deleting both avginfoavi.ctf and avginfowin.ctf files fixes the Invalid Update Control CTF File error problem. There are 3 ways to delete the CTF files.
1. Search for avginfoavi.ctf and avginfowin.ctf in Windows and delete it.
2. Manually go to the folder where both of the CTF files are located and delete it. The Application Data folder is hidden and you’ll need to enable show hidden files and folders in Folder Options to see the folder.
In Windows XP: C:\Documents and Settings\All Users\Application Data\avg8\update\download
In Windows Vista: C:\ProgramData\avg8\update\download
3. AVG has created a small executable file called deleteupdatefiles.exe that will automatically delete the download folder that contains the CTF files.

Hope that either 3 methods above will help you fix the problem in updating AVG8.
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i just uninstalled AVG 8.0…..It fucks…..use Avast
No time to fix it.
many thanks,this threat helped me ;)
thanks dude!! really appreciate it!
thanks a lot for the info. appreciate it.
Thank you Ray,
Good work, it helped me to update the patch successfully… :)
Muchisimas gracias ! Estaba como loca intentandolo actualizar, e utilizado el 3º paso y nada geniaal me ha ido ! De verdad muchas gracias ! :)
un saluudo !
Fenómeno el dato de ese ejecutable que borra los archivos CTF.
Lo bajé en segundos, lo ejecuté y me fui a “updatear” el AVG y ya lo hizo
Muchas gracias
Thanks for the help. It worked instantly.
when updeate the avg gets the error “bin file is missing.” I can do what?
thanks
al ejecutar la actualizacion del avg, aparece el error “a bin file mising”. como puedo solucionarlo???
gracais
thank you, option 3 working good, update sucecfull
Muchísimas gracias, me ha sido de gran ayuda
Danke, hat super funktioniert. Super das Sie sich die Muehe gemacht haben den Fehler zu beheben.
Raymond,
Merci pour ta recherche. Cela prouve combien de fois AVG8 t’a aussi embêté ce mois-ci. Je me suis dit que c’est parce que le logiciel est gratuit que nous avons tant de problème. Si c’est le cas, que l’équipe de l’édition AVG retire simplement l’option gratuite au lieu de nous causer de si grands dommages
Great Help. But why this problem occurs? The answer could fix more than just to get this going this time!
Tks,
Sathees Navaratnam
that avg false positive for flash was posted in the forum, it’s ridiculous how many false positives AVG can manage to get.
many thanks Raymond,
take a glance here if you’re interested
theregister.co.uk/2008/11/14/avg_false_positive_flash/
regards
The only time i have gotten this error is when I don’t restart after updating. The rest of the time the only error is because it cant connect to the server because my laptop is usually not connected to the internet
Hi ray,
Thanks for the efforts put by you.
My question is not related to this topic.
Currently i am using combination of some of the top free security softwares like avira personal,comodo firewall and threatfire4.0
My question is there any conflicts between TF 4.0 and comodo d+ .could you please suggest the free available security softwares which make the perfect security suite including av+firewall+anti spyware+rootkit etc. and dont conflict much.
I Lappi is brand new with dule core 1.8 mhz processor ,2 gb ram and xp installed.
One more thing i want to ask you is which application or software is required to open nod32 viewer(suggested by you for KVS virustool update ) bcoz when i am trying to open it ,giving me open with option and i tried some but its not opening. please help.
thanks ray!
Or use Avast! . it has a lot of false positives but its ok for an advanced PC user
fXXX avg, use AVIRA!
stupid AVG they have had way too many problems this month
Appreciate, thanks.