Licence will not renew on my old PC on Windows Vista

Hello Keith,
Thank you for contacting AVG support community.
I apologize for the trouble caused.
Sorry to say this but AVG does not support Windows Vista.
We kindly request you to upgrade your operating system and get back to us.
We will certainly help you out.
Thank you.

renewed my license but my PC operating on Windows Vista will not update with the renewed License
(Activation code redacted)
Keith

Hello Keith,
Thank you for contacting AVG support community.
I apologize for the trouble caused.
Sorry to say this but AVG does not support Windows Vista.
We kindly request you to upgrade your operating system and get back to us.
We will certainly help you out.
Thank you.