Fix: Application was Unable to Start Correctly (0xc0000142)

Attempt to repair the Office suite to fix this error

4 min. read

Updated onFebruary 28, 2024

updated onFebruary 28, 2024

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Key notes

The application was unable to start correctlyin Windows 10 is an error message usually accompanied by the error code 0xc0000142. This means that there is a problem with the Office application. You’ll therefore beunable to launch any of the programs in the Microsoft Office suite.

One possible cause is that you installed an older version of Office or that it was updated to a newer version but not completely installed. Whatever the reason, we unpack possible solutions in this article to help you resolve this issue.

What is error code 0xc00001420?

0xc00001420 is an error code that occurs when you try to run an application. The error code indicates that the application tried to run and failed, or it could not start correctly. Some of the common errors include:

The most common causes for this error include:

How do I fix the application was unable to start correctly?

We recommend that you perform the following checks first before any complex solutions:

1. Restart the Office Software Protection Platform service

2. Check for Windows updates

3. Repair Office

4. Reinstall Office

Before you reinstall Office, ensure youget rid of any software leftoversthat may have been causingthe application was unable to start correctly (0xc00001420)issue in Windows 10. This will ensure you’re getting a clean install of the program.

We also have a similar article for when anapp won’t start correctly, so don’t hesitate to check out our expert article. Also, check out our detailed guide on what to do ifWindows 10 apps are not opening.

We also have a guide onThe application was unable to start correctly 0xc00005error, so don’t miss it.

Your feedback is important to us, so comment below for any additional thoughts on this topic.

Fix: Application was Unable to Start Correctly (0xc0000142)#

What is error code 0xc00001420?#

How do I fix the application was unable to start correctly?#

1. Restart the Office Software Protection Platform service#

2. Check for Windows updates#

3. Repair Office#

4. Reinstall Office#