Office update causes it to not open

Hello, Frank_Q2

Welcome to Microsoft Community.

The issue you're experiencing is a common problem that can occur after a Windows update disrupts the Microsoft Office suite. The error message 0xc0000142 typically indicates a compatibility or installation problem. Here's a step-by-step guide to resolve the issue:

1: Repair Microsoft Office

• Press Windows + R, type appwiz.cpl, and press Enter.
• Locate Microsoft 365 (or Office) in the list of installed programs.
• Right-click on Microsoft 365 and select Change.
• Choose Quick Repair first and follow the prompts.
• If the issue persists, repeat the process and select Online Repair. This requires an internet connection.

2: Check Office Software Protection Platform Service:

• Press Windows + R, type services.msc, and press Enter.
• locate **Office Software Protection Platform (**osppsvc) & Microsoft Office Click-to-Run Service.
• Right-click the service and select Restart.
• Try opening Office applications again.

3: Windows repair upgrade (Optional)

Sometimes, system updates can cause startup issues, Please follow the steps in the following article to perform a Windows repair upgrade. This process is equivalent to a non-destructive repair. Please try to open Office after completion to observe how the problem behaves.

How to perform repair upgrade in Windows 11 - Microsoft Community

Disclaimer: Let’s try performing an in-place install or in-place upgrade which will refresh your Windows files and operating system without removing files or applications. That being said, we always recommend that if you have important data, you should back it up before making large system changes. If you want to back up your data first, please do so.

Let me know how these steps go or if you encounter any specific issues during the process.

Hannah.Z | Microsoft Community Support Specialist