Miscellaneous topics that do not fit into specific categories.
On Windows, run Online Repair from the Office installation settings instead of relying only on the Repair Now button shown when an app opens.
Run a full Office repair
- Close all Office applications.
- Open the Office repair settings:
- Windows 11: Right-click Start → Installed apps.
- Windows 10: Right-click Start → Apps and Features.
- Find Microsoft 365 or Microsoft Office.
- Select the three dots if shown, and then select Modify.
- Choose the applicable option:
- Click-to-Run installation: Select Online Repair → Repair.
- MSI-based installation: Select Repair → Continue.
- Complete the prompts, restart the computer, and test Word or Excel.
Online Repair checks the entire Office installation, even if only one application is failing. It is more comprehensive than Quick Repair and requires an Internet connection.^1^
If Modify is unavailable, open Control Panel → Programs → Programs and Features, right-click Microsoft 365 or Office, and select Change or Repair.[^2^](https://support.microsoft.com/office/-something-went-wrong-error-when-you-try-to-start-a-microsoft-365-app-4b4471dd-cf86-4a37-910d-35a01a6c7d17 ""Something went wrong" error when you try to start a Microsoft 365 app")
If Online Repair does not fix it
Completely uninstall Office using Microsoft’s uninstall troubleshooter, restart the PC when prompted, and reinstall the correct Office version. The troubleshooter must run on the affected PC and requires Windows 10 or later; it currently cannot uninstall Office 2024.[^2^](https://support.microsoft.com/office/-something-went-wrong-error-when-you-try-to-start-a-microsoft-365-app-4b4471dd-cf86-4a37-910d-35a01a6c7d17 ""Something went wrong" error when you try to start a Microsoft 365 app")
Before uninstalling, ensure the Microsoft account used to purchase or activate Office is available, because it will be needed for reinstallation and activation.
References