Windows 10/11 RTM Professional Retail

You will get a Lifetime key that works on both Windows 10 and 11 Pro
it will be linked to your Microsoft account for activating after the format
and it is unlike other keys that people get for free and sell to you
its Unshared key - Private Key
**if it doesn't work I will replace it for you**
I give you 10 Day storage warranty
that means you have to activate it within 10 Days
**The activation method is the official method**
Go to Settings > Update & Security > Activation
Note: if you have Windows Home Edition
you need to upgrade your Windows to pro
then restart your device and try the purchased key