Start Word in Safe Mode first; if it opens, disable the faulty add-in, and if it does not, run an Online Repair of Microsoft Office.
1. Start Word in Safe Mode
- Press Windows key + R.
- Type:
winword /safe
- Select OK.
Alternatively, hold Ctrl while double-clicking the Word shortcut, then select Yes when asked to start in Safe Mode. ^1^
2. If Word opens in Safe Mode
An add-in may be preventing normal startup. Disable add-ins individually:
- In Word, select File > Options > Add-Ins.
- At the bottom, set Manage to COM Add-ins, then select Go.
- Clear one add-in's checkbox and select OK.
- Close Word and open it normally.
- Repeat until Word opens normally. Leave the problematic add-in disabled, remove it, or obtain an updated version. ^2^
If Safe Mode works but disabling COM add-ins does not identify the problem, press Windows key + R, enter winword /a, and press Enter. This starts Word without automatically loading add-ins and global templates and helps isolate a startup configuration or template problem. ^3^
3. If Word does not open in Safe Mode
Repair the complete Office installation:
Windows 11
- Right-click Start > Installed apps.
- Find Microsoft 365 or Microsoft Office.
- Select the three dots > Modify.
- Select Online Repair > Repair.
Windows 10
- Right-click Start > Apps and Features.
- Select Microsoft 365 or Microsoft Office.
- Select Modify.
- Select Online Repair > Repair.
Online Repair is more complete than Quick Repair and repairs the entire Office suite. Follow the prompts, restart Windows when it finishes, and test Word again. ^4^
Before Online Repair, ensure that the Office license or Microsoft 365 subscription is available in the Microsoft account used to install Office, because repair can require reinstallation or activation.
If Word still will not open
Provide these details to narrow down the next step:
- The complete error message or a screenshot with personal information hidden.
- Windows 10 or Windows 11.
- Microsoft 365, Office 2024/2021/2019/2016, or another edition.
- Whether other Office applications such as Excel open normally.
- Whether both
winword /safe and winword /a fail.
Avoid registry changes until those results are known; incorrect registry modification can cause serious problems. ^3^
References
- Open Office apps in safe mode on a Windows PC | Microsoft Support
- I get a "stopped working" error when I start Office applications on my PC | Microsoft Support
- How to troubleshoot problems that occur when you start or use Word | Microsoft Support
- Repair an Office application