1. To get started, open a command prompt as an administrator. To do this, in the search, write "Command Prompt", press RMB and select "Run as administrator"
2. After opening enter: slmgr /ipk "selected-key"
2-1. A window about installing the key will appear.
3. We enter the following command: slmgr /skms kms.digiboy.ir
3-1. We get a window about connecting to the server:
4. Enter the last command: slmgr /ato
4-1. We get a window about successful activation
If it fails, try one of these commands in the second step: slmgr /skms kms.digiboy.ir
or slmgr /skms zh.us.to