Hello.
Each system has a specific product key, do you have a legitimate license?
You can only activate the system if you have a legitimate license.
You can purchase the license from an authorized retailer.
If you have a legitimate license, we recommend that you try to activate it over the phone as follows:
- Select Start > Settings > System > Activation.
- Under Activate Windows Now section, select Activate by Phone.
Best Regards,
Hania Lian
============================================
If the Answer is helpful, please click "Accept Answer" and upvote it.