How Do I Reinstall a Subscription ...

I need to do a complete system reinstall which means i will lose my avast subscribed downloads which i have paid for.

How do hook up again?
Can i backup those files or will they be blocked?
And since im here already, let’s make certain. Where are those files to be found? Are they all under one file only?

The avast! program you can download anytime, what you need is the license file you got in a mail…