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How to Fix Word, Excel, or PowerPoint Desktop Apps Not Opening
Question details
Microsoft 365 desktop applications, including Word, Excel, and PowerPoint, fail to launch.
- Product
- Microsoft 365
- Device & OS
- Windows
- Scenario
- Attempting to open Microsoft 365 desktop applications to view or edit documents.
- Observed behavior
- Word, Excel, or PowerPoint desktop apps do not open or fail to start when launched by the user.
Ensure your computer is connected to the internet if you plan to run an Online Repair, and verify that your system meets the minimum requirements for running Microsoft 365 desktop applications.
Use the Microsoft 365 Repair Tool
Running the built-in Windows repair tool can quickly fix damaged installation files that prevent Office applications from opening.
Microsoft includes a built-in utility to scan for and repair corrupted program files. A Quick Repair fixes most issues without needing an internet connection, while an Online Repair does a comprehensive reinstall of the application files.
Press the Windows Key + R on your keyboard to open the Run dialog box. Type appwiz.cpl and press Enter.
Scroll through the list of installed programs, locate your Microsoft 365 installation, right-click it, and select Change.
Choose the Quick Repair option and click Repair. Follow the on-screen prompts. If the applications still fail to open after completion, repeat these steps and choose Online Repair instead.
Launch in Safe Mode and Disable Add-ins
Starting the application in Safe Mode bypasses incompatible or faulty add-ins that might be causing the app to crash on launch.
Reinstall Microsoft 365
If repair tools and Safe Mode fail, a clean installation ensures all application files are restored to their default working state.
Use WPS Office as a Reliable Alternative to Microsoft 365
If Microsoft 365 apps frequently fail to open or run slowly, consider switching to WPS Office. It is a free, lightweight alternative that offers seamless compatibility with Word, Excel, and PowerPoint files without the heavy installation footprint.
- 1. Download WPS Office: Visit the official WPS website and download the free WPS Office suite installer.
- 2. Install the application: Run the lightweight setup file and follow the on-screen instructions to install the software in minutes.
- 3. Open your Office files: Launch WPS Office and directly open your existing Microsoft Word, Excel, or PowerPoint files without losing any formatting.
Frequently Asked Questions
Why won't my Word or Excel open on my Windows computer?
Office applications typically fail to open due to corrupted installation files, conflicting third-party add-ins, or background processes that have hung. Running the built-in Microsoft 365 repair tool usually resolves these issues.
What does opening an Office app in Safe Mode do?
Safe Mode launches the application in its most basic state, bypassing all third-party add-ins, extensions, and toolbar customizations. This helps you identify if a specific add-in is causing the application to crash upon launch.
Will repairing or reinstalling Microsoft 365 delete my files?
No. Performing a Quick Repair, Online Repair, or even reinstalling Microsoft 365 only modifies the application files. Your personal documents, spreadsheets, and presentations saved on your hard drive or OneDrive will not be affected.
