Reinstalling AVG protection after HD format

thank you,
from the article list provided by your link, this fits best:
https://support.avg.com/SupportArticleView?l=it&urlName=Activate-AVG-AntiVirus-or-Internet-Security-with-a-new-license-number&q=How+to+activate+AVG+with+a+new+license+number

However, now my problems are clearer : in the opions menu I have no Activate or Reactivate items, but only 'My Account' , 'Buy now' and 'Info...'

At the moment my trial period has expired, but I could not find an 'Activate' item in the menu before expiration as well. (AVG installed in Italian)

Hello PietroFelice.
Thank you for contacting us. Do you have AVG Zen installed on your PC? If so, please uninstall it because your AVG Internet security does not include AVG Zen. If there is no Zen installed on your PC, please follow the steps in this article ( http://avgclick.me/ActivateLicense ) to activate your free version with the paid license number. Please, feel free to let us know if you require any further assistance. Thank you.

I formatted HD and reinstalled Windows Vista Home.
I was not capable to reinstall AVG Protection Pro (AVG_Internet_Security_742.exe)
At the moment I am running AVG Antivirus Free for which the trial has expired yesterday, and I cannot find out how to restore my two-year licence for AVG protection pro.
What to do ?

thank you,
from the article list provided by your link, this fits best:
https://support.avg.com/SupportArticleView?l=it&urlName=Activate-AVG-AntiVirus-or-Internet-Security-with-a-new-license-number&q=How+to+activate+AVG+with+a+new+license+number

However, now my problems are clearer : in the opions menu I have no Activate or Reactivate items, but only 'My Account' , 'Buy now' and 'Info...'

At the moment my trial period has expired, but I could not find an 'Activate' item in the menu before expiration as well. (AVG installed in Italian)

Hello Pietrofelice,
Please run the  AVG remover tool : http://aa-download.avg.com/filedir/util/AVG_Remover.exe to completely uninstall your previous installation of AVG program from your PC. Once uninstalled please follow the instructions on the article http://avgread.me/1DXPL5z to reinstall your AVG program.
Thank you.

Hello PietroFelice.
Thank you for contacting us. Do you have AVG Zen installed on your PC? If so, please uninstall it because your AVG Internet security does not include AVG Zen. If there is no Zen installed on your PC, please follow the steps in this article ( http://avgclick.me/ActivateLicense ) to activate your free version with the paid license number. Please, feel free to let us know if you require any further assistance. Thank you.

great, it worked !
after running AVG_remover and 1 rboot, running the avg internet protection setup, when I clicked the 'custom setup' , prompted for my licence and went on fairly.
thanks

Hello PietroFelice,
Thank you for your kind post and for your support of AVG products. That's great to hear your issue has been resolved now. Please feel free to contact us for further assistance.