A family of Microsoft word processing software products for creating web, email, and print documents.
For the AppVisvSubsystems32.dll error, the supported fix is to repair Microsoft 365 first, then reinstall Office if repair does not fix it.
- Restart the PC, then try Word again.
- Run an Office repair:
- Open Control Panel.
- Select Uninstall a program.
- Select Microsoft Office or Microsoft 365.
- Select Change.
- Choose Quick Repair and complete it.
- Try opening Word.
- If Word still shows the same error, repeat the repair and choose Online Repair instead.
- This requires an active internet connection.
- This repairs the full Office suite, not just Word.
- If Word still does not open after Online Repair, uninstall and reinstall Microsoft 365.
On Windows 10, the repair path can also be:
- Right-click Start > Apps and Features.
- Select Microsoft 365 or Office > Modify.
- For Click-to-run, select Online Repair > Repair.
- For MSI-based installs, select Repair > Continue.
If Office opens at all after repair, also check for updates:
- Open an Office app.
- Go to File > Account.
- Under Product Information, select Update Options > Update Now.