Fix OneDrive for Mac High CPU Usage After Update
Question details
Users are experiencing severe performance drops on their Macs due to the OneDrive app consuming excessive CPU and memory resources.
- Product
- Microsoft OneDrive
- Device & OS
- macOS
- Scenario
- Using the OneDrive app after a recent software update or after changes to the Files On-Demand feature.
- Observed behavior
- OneDrive gets stuck on 'Processing Changes', maximizing CPU usage (often over 200%), utilizing massive amounts of RAM, causing loud fan noise, and rapidly draining the battery without actually syncing files.
Check your Mac's Activity Monitor to confirm that the 'OneDrive' or 'OneDrive File Provider' process is the primary cause of the high CPU usage before proceeding with these solutions.
Update macOS and the OneDrive App
Installing the latest system and application patches is the recommended method to resolve version-specific bugs causing high resource usage.
Microsoft frequently releases patches to address performance bugs introduced in earlier versions. Updating your system ensures you have the latest bug fixes for the Files On-Demand feature.
Click the Apple menu, select 'System Settings' (or 'System Preferences'), navigate to 'General', and click 'Software Update' to install any pending system updates.
Go to the official Microsoft OneDrive download page and download the newest standalone installation package for Mac.
Run the downloaded installer to overwrite your current buggy version of OneDrive, then restart your Mac.
Pause and Resume Syncing
Temporarily pausing the sync process can halt the endless 'Processing Changes' loop and immediately drop CPU usage.
Limit Process CPU Usage via Third-Party Tools
Use a CPU management tool as a temporary workaround to keep your Mac usable while waiting for an official Microsoft patch.
Try WPS Office for a Lightweight Mac Experience
If OneDrive and Microsoft Office updates are bogging down your Mac's performance, consider switching to WPS Office. It provides a highly compatible, resource-friendly alternative for managing and editing your daily documents without triggering high CPU usage.
- 1. Download WPS Office: Visit the official WPS website and download the macOS installation package.
- 2. Install the Application: Open the downloaded file and drag the WPS Office icon to your Applications folder.
- 3. Open Your Documents: Launch WPS Office and instantly open your existing Microsoft Office files without losing any formatting.
Frequently Asked Questions
Why does OneDrive say 'Processing Changes' forever on my Mac?
This is often caused by a bug in the macOS Files On-Demand feature where OneDrive enters an endless indexing loop, continually scanning files without actually syncing any new data to the cloud.
Will resetting the OneDrive app fix the high CPU issue?
Resetting OneDrive clears its internal cache and can sometimes resolve temporary sync stalls. However, many users report that a reset does not permanently fix the core high CPU bug introduced in version 22.012.0117.0003.
How can I quickly stop OneDrive from draining my MacBook battery?
To instantly stop battery drain, click the OneDrive icon in your menu bar, click the gear icon, and select 'Quit OneDrive'. Alternatively, you can select 'Pause syncing' to halt background activity temporarily.
