Microsoft Activation Link and Redeem

office.com/setup ( after login create Microsoft Account with personal email tie to product key will after login will request to put Product Key)

then able to check redeem

account.microsoft.com/services

 

 to check account

account.microsoft.com 

or

myaccount.microsoft.com 

 

 

portal.office.com (to download APP) after login with Microsoft Account)

 

 for Windows 11 can try install new windows 11 to PC then Login Microsoft Account then put the Product Key