A family of Microsoft word processing software products for creating web, email, and print documents.
Try these steps in order on Windows:
- Update Office first
- Open Word and create a blank document if it opens.
- Go to File > Account > Update Options > Update Now.
- If Update Now is not shown, select Enable Updates first.
- Restart the PC after updates finish.
- Start Word in Safe Mode to check add-ins
- Press Windows + R.
- Type
winword /safeand press Enter. - If Word opens in Safe Mode, go to File > Options > Add-Ins.
- In Manage, select the Word add-ins type or COM Add-ins, then select Go.
- Clear one add-in at a time, select OK, and restart Word normally after each change.
- If Word starts normally after disabling one add-in, that add-in is the cause.
- Run an Office repair
- Go to Start > Settings.
- On Windows 11: Apps > Installed apps.
- On Windows 10: Apps and Features.
- Select Microsoft 365 or Office > Modify.
- For Click-to-Run, choose Online Repair > Repair. This is more thorough than Quick Repair.
- For MSI-based installs, choose Repair > Continue.
- Restart the PC when the repair finishes.
- If Word still fails, reset the Word Data registry key
- Warning: Incorrect registry changes can cause serious problems. Back up the registry first.
- Close all Office apps.
- Open regedit.
- Go to: HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Word\Data
- Right-click Data > Export, save it as Wddata.reg.
- Right-click Data again > Delete.
- Start Word.
- If this does not help, restore the backup by double-clicking Wddata.reg.
- If a specific document triggers the error
- Open Word.
- Create a new blank document.
- Go to Insert > Object > Text from File.
- Select the affected document and insert it. This can recover the text if the original file is damaged.
If Word does not start even in Safe Mode, the documented next step is to repair Office. If repair does not resolve it, reinstalling Office may be required.
- How to troubleshoot problems that occur when you start or use Word
- I get a "stopped working" error when I start Office applications on my PC
- Repair an Office application
- How to fix MS Word has run into an error that is preventing from working properly. Word will need to be closed as a result. - Microsoft Q&A