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 Microsoft 365 Setup Troubleshooter in the Get Help app helps users fix problems when installing Microsoft 365 and Office 2024, Office 2021, Office 2019, or Office 2016 versions on Windows 11/10 ...