Upgrading to Internet Security

Hello Krisztian.
I am really sorry to know this. I would kindly request you to follow the below instructions
1) First step is to use AVG Remover tool based on your operating system ( http://support.microsoft.com/en-us/kb/827218 ) and uninstall your AVG program completely. To download AVG Remover Tool please click on the following link:
For 32-bit: http://download.avg.com/filedir/util/support/avg_remover_stf_x86_2015_5501.exe
For 64-bit: http://download.avg.com/filedir/util/support/avg_remover_stf_x64_2015_5501.exe
2) Run the downloaded tool and follow the instructions displayed on your screen.
3) Your computer will be restarted automatically. After the restart, AVG Remover will finish the un-installing the program.
4) To install the program AVG Internet Security, please have a look at this article: http://avgread.me/1DXPL5z .
This should resolve your issue. Please let us know here your results. Thank you.

Hello Krisztian.
I am really sorry to know this. I would kindly request you to follow the below instructions
1) First step is to use AVG Remover tool based on your operating system ( http://support.microsoft.com/en-us/kb/827218 ) and uninstall your AVG program completely. To download AVG Remover Tool please click on the following link:
For 32-bit: http://download.avg.com/filedir/util/support/avg_remover_stf_x86_2015_5501.exe
For 64-bit: http://download.avg.com/filedir/util/support/avg_remover_stf_x64_2015_5501.exe
2) Run the downloaded tool and follow the instructions displayed on your screen.
3) Your computer will be restarted automatically. After the restart, AVG Remover will finish the un-installing the program.
4) To install the program AVG Internet Security, please have a look at this article: http://avgread.me/1DXPL5z .
This should resolve your issue. Please let us know here your results. Thank you.

hi, 
I recently upgraded my free avg anti-virus to avg internet security (on win10 laptop).  Got the message in the software "your new AVG software license gives you access to additional features", Clicked 'yes' for installation of the firewall modul, but got the following error: 

"Another installation is in progress. Complete that installation before proceeding with this install" Error code 0xc0070652

There is no other installation running (not that I know of) visibly. Any idea what can I do?

Thanks for your quick and helpful answer, problem solved.