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 ...
The Get Help app allows you to recover your Microsoft account, even if you do not have any account recovery options. Click on Windows 11 Search and type Get Help. Select the Get Help app from the ...