If you cannot activate Microsoft 365 on a shared computer, you can use the Microsoft 365 Shared Computer Activation (SCA) Troubleshooter to fix the issue on a Windows 11/10 PC. It uses the Get Help ...

Recently my "old" xp pro main box needed a new motherboard.. and now Office XP Pro 2002 won't "activate." I have the original disks... and even when I put in the main disk.. and I have the Product Key ...