Multiple lincences after formatting computer

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Hi there,
I want to format my PC and I got a 3pack of avast lincences.
What will happen when I install it again after formatting my computer?
Beacause I don't have a licence file I just got my Avast account where 3purchases are stored.
When I click "Use licence" will it use the same licence as I had before or will it use a new one?
Thanks,
Simon

[Eddy]

Please (re)search before asking.
This has been explained many times already.
It doesn't matter how many times you format and perform a clean installation.
The current license will stay valid until the expiration date is reached.

https://www.avast.com/resend-license-paid.php

Remove the current system from your account : https://my.avast.com
Install Windows and avast and connect the new system with your account.

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Thanks,
I wasn't sure because everything I found was about single lincences...
 

[Eddy]

A license = a license
It doesn't matter how many systems or for how many years it is bought.