Office Apps Crashing

Fix PowerPoint Closing Unexpectedly When Opening Synced SharePoint Files

Maira Mehtab Sep 27, 2026 870 views

Question details

PowerPoint crashes or closes automatically when attempting to open presentation files from a locally synced SharePoint directory.

Product: Microsoft PowerPoint, SharePoint, OneDrive
Device & OS: not provided
Scenario: Opening presentation files stored in a locally synchronized SharePoint or OneDrive folder.
Observed behavior: The PowerPoint application closes unexpectedly without warning or fails to load the file due to cache corruption, synchronization conflicts, or outdated software.

Before you start

Before proceeding with advanced repairs, verify that the SharePoint file can be opened directly from the SharePoint Online web interface to ensure the file itself is not corrupted.

Solution 1Recommended

Repair Microsoft 365 Installation and Clear Office Cache

Corrupted Office caches or installation files often cause PowerPoint to crash during file sync operations.

Microsoft Office maintains a local cache to speed up file loading for cloud documents. When this cache becomes corrupted, applications like PowerPoint may crash upon opening synced files.

Open Programs and Features

Open the Windows Control Panel, navigate to 'Programs', and click on 'Programs and Features'.

Initiate Office Repair

Find 'Microsoft 365' or 'Microsoft Office' in the installed programs list, right-click it, and select 'Change'.

Run Quick Repair

Select 'Quick Repair' and click 'Repair'. If the issue persists after completion, repeat the process and choose 'Online Repair'.

Clear Office Cache

Open PowerPoint, go to File > Options > Save. Scroll down to Cache Settings and click 'Delete cached files', then restart PowerPoint.

Data Safety: Running a Quick Repair or clearing the Office document cache will not delete your personal files or presentations.

Solution 2

Reset the OneDrive Synchronization Client

Synchronization conflicts between local folders and SharePoint can force Office applications to close.

Solution 3

Install the Latest Windows and Office Updates

Outdated software can have known bugs that cause crashes when interacting with cloud-synced folders.

Free Microsoft Office alternative

Try WPS Office for Seamless Presentation Management

If PowerPoint continues to crash due to Microsoft 365 sync issues, consider switching to WPS Office. It is a free, lightweight, and highly compatible alternative that handles presentations smoothly without bloated background sync services causing unexpected closures.

1. Download WPS Office: Download and install the free WPS Office suite from the official website.
2. Open WPS Presentation: Launch WPS Office and click on 'Presentation' from the main dashboard.
3. Open Your SharePoint File: Click 'Open', navigate to your locally synced SharePoint folder, and select your presentation file to view and edit it without crashing.

Highly compatible with Microsoft PowerPoint formats (.ppt, .pptx) to prevent formatting loss.Lightweight installation with faster startup times and lower system resource usage.Reliable built-in cloud support for smooth, crash-free file access.Familiar tabbed user interface, ensuring a zero-learning-curve migration from Microsoft Office.

microsoft office alternative - wps office

Frequently Asked Questions

Why does PowerPoint only crash on SharePoint synced files?

Synchronization conflicts or a corrupted Microsoft Office Document Cache can cause the application to crash specifically when attempting to read the cloud sync status of those backed-up files.

How do I know if the SharePoint presentation file itself is corrupted?

Try opening the presentation directly from SharePoint Online in your web browser. If it opens successfully in the web version of PowerPoint, the issue is likely with your local desktop application or sync client, not the file itself.

Will resetting OneDrive delete my SharePoint files?

No, resetting the OneDrive sync client only resets the application's synchronization configuration. Your files remain safely stored in the cloud on SharePoint.

Can I disable offline sync for SharePoint to prevent crashes?

Yes, you can choose to stop syncing the specific SharePoint folder via OneDrive settings and instead open files directly from the SharePoint website to completely bypass local sync issues.

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