MT5 EA is deleted after windows update

 
My MT5 EA got deleted after a windows update and I had to install the EA again. The problem is it took another activation.  How do I get this activation back?
 

You can not get those 2 activations back because we (buyers) are not paying for activations (we are paying for the products).
As to activations:

Forum on trading, automated trading systems and testing trading strategies

EA suddenly broken

Rashid Umarov, 2019.05.27 19:08

Hello,

Each product has at least 5 activations that can be used in case of hardware failure, re-installation of OS, installation on a wrong PC. That is enough for a normal personal use.

In case there is a huge Windows update coming, we add an additional activation for all purchased products beforehand. We don't add activations personally - they are not provided, and it is not possible physically.

Example: Windows 10 October 2018 Update (version 1809) causes saved MetaTrader passwords to become invalid

Forum on trading, automated trading systems and testing trading strategies

Windows 10

MetaQuotes , 2020.12.26 21:49

To compensate for the inconvenience with reinstallations and relocations, at least 5 activations are initially given.

This is exactly a compensation backlog, and not 5 guaranteed devices under any conditions.