Windows update

 
After I updated windows, I had to use a license, even though I already used one on this PC. Why is that so? 
 
Ron David Klassen:
After I updated windows, I had to use a license, even though I already used one on this PC. Why is that so? 

https://www.mql5.com/en/forum/354731

 

Thank you!!!!

Reason: