Fix Microsoft 365 Error 0xc0000142 and Repeated Office Repairs
Question details
Resolve recurring Microsoft 365 application failures and error 0xc0000142 after Office has already been repaired.
- Product
- Microsoft 365 Apps
- Device & OS
- Windows; version not provided
- Scenario
- Opening Office applications such as Word, Outlook, or PowerPoint after previous repairs.
- Observed behavior
- Office displays an update message followed by error 0xc0000142. Applications work again after repair, but the problem returns.
Close all Office applications and make sure your computer has an internet connection for Online Repair. Note which applications fail and what happens immediately before the error appears.
Run Microsoft 365 Online Repair
Use Online Repair to address damaged or incomplete Office installation files.
Open Control Panel and select Programs > Programs and Features.
Select Microsoft 365 or Office 365 in the program list, then click Change.
Select Online Repair, click Repair, and follow the prompts. Reopen an affected Office application when the repair finishes.
Check Office add-ins in Safe Mode
Use this method if the error returns after repair and an add-in may be interfering with an Office application.
Update Windows and Office and check for conflicts
Use this if repair or add-in checks do not stop the recurring error.
Keep Working on Office Files with WPS Office
WPS Office is a free, lightweight alternative with a familiar interface for working on documents, spreadsheets, and presentations. Its Microsoft Office format support makes it easier to continue working with existing files, though it does not repair Microsoft 365.
Frequently Asked Questions
What does Office error 0xc0000142 mean?
It indicates that an Office application could not start correctly. Damaged installation files, incomplete updates, add-ins, or conflicting software may be involved.
Where can I find Online Repair for Microsoft 365?
Open Control Panel > Programs > Programs and Features, select Microsoft 365 or Office 365, and click Change. Select Online Repair and follow the prompts.
How do I open Word in Safe Mode?
Press Windows + R, enter winword /safe, and select OK. If Word opens successfully, investigate its add-ins through File > Options > Add-ins.
Why does the error return after I repair Office?
Repair may restore Office temporarily without resolving an add-in, incomplete update, or software conflict. Check add-ins in Safe Mode, install updates, and note what happens before the next failure.
