Hi,
If Microsoft Word cannot be opened, please try the following steps:
1/ Start Word in Safe Mode
- Press Windows + R.
- Type winword /safe and press Enter.
- If Word opens in Safe Mode, the issue may be caused by an add-in. You can disable add-ins by going to File > Options > Add-ins > COM Add-ins > Go, then uncheck the add-ins and restart Word.
2/ Repair Microsoft 365
- Go to Settings > Apps > Installed apps.
- Find Microsoft 365 (or Microsoft Office), select Modify.
- Try Quick Repair first. If the issue persists, try Online Repair.
3/ Install the latest Microsoft 365 updates
- If you can open another Office application such as Excel, go to File > Account > Update Options > Update Now.
If Word still cannot be opened, please let me know what happens when you try to launch it, including any error message or error code. A screenshot of the error would also be helpful so I can suggest the next troubleshooting steps.
For reference: Repair an Office application | Microsoft Support