Office Apps Freezing

Fix PowerPoint Freezing and Running Slowly on OneDrive

Bushra Parveen Sep 27, 2026 871 views

Question details

The user is experiencing severe performance degradation, freezing, and potential data loss when editing PowerPoint files located in OneDrive or SharePoint folders, whereas local files function normally.

How to Fix PowerPoint Freezing and Running Slowly on OneDrive

Product: Microsoft PowerPoint
Device & OS: Windows
Scenario: Editing and saving presentation files stored on cloud services like OneDrive and SharePoint.
Observed behavior: The PowerPoint desktop application becomes extremely slow, hangs during edits, and may fail to save changes when working with OneDrive/SharePoint files. Safe mode and clean boots do not resolve the issue.

Before you start

Verify if the issue is strictly related to cloud syncing by copying the affected presentation to a local folder (such as your Desktop) and editing it there to see if the freezing stops.

Solution 1Recommended

Perform a Clean Reinstallation of Microsoft 365

Since standard troubleshooting like Safe Mode may fail for sync-related freezing, completely removing and reinstalling Office clears corrupted application caches causing the slowdown.

If your PowerPoint files work perfectly from a local drive but freeze in a OneDrive folder, the issue likely lies within the Office sync client or corrupted installation files. A clean reinstall using the official scrubbing tool is the most effective local fix.

Download the Office Scrub Tool

Download the Microsoft Support and Recovery Assistant (often referred to as the Office uninstall support tool) from the official Microsoft website.

Completely remove Office

Run the downloaded utility, select the version of Microsoft 365 you are using, and follow the prompts to completely remove the software and its residual files from your computer.

Reinstall Microsoft 365

Restart your Windows device. Log into your Microsoft account via your web browser, download the latest Microsoft 365 installer, and install the PowerPoint desktop application.

Perform a Clean Reinstallation of Microsoft 365

Data Preservation: Uninstalling Office applications will not delete your personal files, presentations, or data stored on OneDrive.

Solution 2

Escalate the Issue to Microsoft 365 Support

If reinstalling does not resolve the SharePoint or OneDrive performance issues, the problem may be at the tenant or server level, requiring investigation by Microsoft.

Free Microsoft Office alternative

Switch to WPS Office for Smooth Presentation Editing

If Microsoft PowerPoint continues to freeze or run slowly when connected to OneDrive or SharePoint, consider switching to WPS Office. It is a lightweight, high-performance office suite that prevents frustrating sync lags, ensuring your workflow remains uninterrupted.

1. Download WPS Office: Visit the official WPS website and download the free installation package for Windows.
2. Install the application: Run the installer and follow the simple on-screen instructions to set up the software.
3. Open your presentation: Launch WPS Presentation, open your existing .pptx files, and experience seamless, lag-free editing.

Fully compatible with Microsoft PowerPoint formats (.pptx, .ppt)Free and lightweight alternative to costly Microsoft 365 subscriptionsFamiliar user interface requiring zero learning curveSeamless local and cloud editing without heavy resource usage

microsoft office alternative - wps office

Frequently Asked Questions

Why does PowerPoint freeze only when saving files to OneDrive?

When connected to OneDrive or SharePoint, PowerPoint relies on continuous background syncing. If there are network interruptions, server-side delays, or corrupted Microsoft 365 sync caches, the application may freeze while waiting for the cloud service to respond.

Does starting PowerPoint in Safe Mode resolve OneDrive sync issues?

Typically, no. Safe Mode disables add-ins and customizations, but freezing related to OneDrive or SharePoint storage is usually a network or core sync process issue. Users report that Safe Mode and clean booting often fail to resolve this specific cloud-related problem.

How can I edit my PowerPoint files without losing changes while this issue persists?

To prevent data loss and freezing, manually copy your PowerPoint file from the OneDrive directory to a local folder (such as your local Documents or Desktop). Complete all your edits locally, save the file, and then manually upload or replace the file back into your OneDrive folder.

Office App Problems