How to Fix Microsoft 365 Apps Crashing or Freezing When Opening from SharePoint or OneDrive Links

Microsoft 365 & Office KB-508

Summary

This guide helps you troubleshoot and resolve: How to Fix Microsoft 365 Apps Crashing or Freezing When Opening from SharePoint or OneDrive Links. Follow the steps below to fix the issue.

Quick Tip: Need immediate assistance? 💻 Open a Ticket

Common Causes

When you click a Word, Excel, or PowerPoint file link in SharePoint or OneDrive, your browser normally prompts Microsoft 365 to open the file in the desktop app. If the app crashes, freezes on a blank screen, or fails to launch entirely, the cause is usually a sync conflict, a corrupted Office cache, or an outdated Office installation. The steps below will walk you through resolving the issue from quickest fix to deeper troubleshooting.

Quick Fix Steps

Try these solutions first — they resolve the issue in most cases:

Restart the Microsoft 365 app fully. Close Word, Excel, or PowerPoint, then open Task Manager (Ctrl + Shift + Esc) and end any lingering processes such as WINWORD.EXE, EXCEL.EXE, or POWERPNT.EXE.
Sign out and back into Office. Open any Office app, go to File > Account > Sign Out, then sign back in with your Microsoft 365 work or school account.
Reset the OneDrive sync client. Click the OneDrive cloud icon in the system tray, select Help & Settings > Settings > Account, then click Reset OneDrive. This forces OneDrive to re-sync the affected file.
Open the file from the desktop app instead of the browser. In SharePoint or OneDrive online, click the three dots next to the file and choose Open in app. If this works, the browser-to-app hand-off is the culprit.

If the file opens correctly via Open in app, your data is fine. The problem is limited to how your browser hands the link off to Office.

Detailed Troubleshooting

Clear the Microsoft Office Document Cache

Office stores temporary file data in a local cache. A corrupted cache is one of the most common causes of crashes when opening cloud files.

Close all Microsoft 365 apps.
Press Win + R, type %localappdata%\Microsoft\Office\16.0\OfficeFileCache, and press Enter.
Select everything in the folder (Ctrl + A) and delete it.
Restart your computer and try opening the file again.

Repair the Microsoft 365 Installation

If clearing the cache did not help, the Office installation itself may be corrupted.

Open Control Panel > Programs > Programs and Features.
Select Microsoft 365 Apps for enterprise (or Microsoft Office) and click Change.
Choose Online Repair and click Repair. This option reinstalls Office components and resolves most file-handling issues.
Restart your computer when the repair completes.

A Quick Repair only fixes missing or corrupted files. If the issue persists, always run the Online Repair, which performs a full reinstall.

Reset the Browser-to-App Hand-off

When you click a document link, your browser passes a special protocol (the ms-word:, ms-excel:, or ms-powerpoint: URI scheme) to Office. If this association breaks, Office will not launch.

In Microsoft Edge, go to Settings > Apps > Default apps.
Search for Word, Excel, and PowerPoint individually.
Set each one to open with the correct Microsoft 365 desktop app.
Repeat the process in Google Chrome via Settings > Privacy and security > Site Settings > Handlers, and confirm the Office protocol handlers are listed and enabled.

Check for Conflicting Sync Software

If you use OneDrive alongside another sync tool (such as Dropbox, Google Drive for Desktop, or a third-party SharePoint sync client), file-locking conflicts can cause Office to hang.

Pause or quit any non-Microsoft sync clients and try opening the file again.
Confirm that Files On-Demand is enabled in OneDrive: click the OneDrive icon > Settings > Sync and backup > Advanced settings.
Ensure the file is not locked by another user. In SharePoint, hover over the file and check for a small padlock or "Checked out" indicator.

Update Office and OneDrive

Outdated versions frequently contain known bugs related to SharePoint and OneDrive integration.

Open any Office app and go to File > Account > Update Options > Update Now.
Update OneDrive: OneDrive updates itself automatically, but you can verify the current version by clicking the OneDrive cloud icon > Help & Settings > Settings > About. If updates are paused or the version is outdated, resume updates or reinstall OneDrive from the official Microsoft page.
Restart your computer once both updates are applied.

Disable Hardware Graphics Acceleration

On older machines or certain graphics drivers, hardware acceleration can cause Office to freeze when rendering cloud documents.

Open Word, Excel, or PowerPoint.
Go to File > Options > Advanced.
Scroll to the Display section and tick Disable hardware graphics acceleration.
Click OK and restart the app.

Test in Safe Mode

Safe Mode launches Office without add-ins, helping you identify whether an add-in is causing the crash.

Press Win + R, type winword /safe (or excel /safe, powerpnt /safe), and press Enter.
If the file opens correctly in Safe Mode, disable add-ins via File > Options > Add-ins and re-enable them one at a time to find the culprit.

When the File Itself Is the Problem

If only one specific file crashes, it may be corrupted. Try the following:

Download a copy via Download in SharePoint or OneDrive online and open it from File Explorer.
Ask a colleague to open the same file from their account to confirm whether the issue is local.
Check the Version History in SharePoint or OneDrive and restore an earlier version if available.

Still Having Issues?

Need more help? If the issue persists after trying these steps, please open a support ticket and our team will assist you.

💻 Open a Ticket