Hi @Ibrahim Ibrahim
- Run the Activation Troubleshooter
Go to Settings > System > Activation
Select Troubleshoot
If you see "I changed hardware on this device recently", select it and sign in with the Microsoft account associated with your Windows license.
- Verify Your Windows Edition
Make sure the installed edition matches your license:
Settings > System > Activation
Check whether you're running Windows Home or Windows Pro
A Windows Home key will not activate Windows Pro, and vice versa.
- Check the Activation Status
Open Command Prompt as Administrator and run:
BAT
slmgr /dlv
Show more lines
This will show detailed activation information, including the license channel and activation status.
- Re-enter the Product Key
If you have a valid 25-character product key:
Go to Settings > System > Activation
Select Change product key
Enter the key and try activating again.
Thanks.