Microsoft has just rolled out a highly requested update for Mac users: OneDrive for Mac now supports removable external drives. With this feature, syncing your OneDrive files to USB drives, SD cards, and other removable storage is finally possible—bringing more flexibility and control for those working with limited internal storage.
HelpDesk
Why This Matters for Mac Users
Until now, OneDrive could only sync to non-removable volumes. For many MacBook users with smaller SSDs, this meant precious internal space was quickly consumed. With removable drive support, you can:
- Free up space on your Mac’s internal drive
- Carry your synced OneDrive files on a USB stick or SD card
- Work seamlessly across multiple Macs by reconnecting the same external drive
This upgrade is especially useful for creative professionals, students, and power users managing large files.
Requirements to Use Removable Drive Sync
To get started, make sure you meet these requirements:
- OneDrive version: 25.127 or later
- macOS version: 15.0 (Monterey) or newer
- Drive setup:
- Must be formatted in APFS
- Must be encrypted with FileVault
- Must be local, writable, and not quarantined by macOS
If your drive doesn’t meet these conditions, OneDrive will not allow syncing.
How Syncing Works
Once configured, OneDrive treats your removable drive like any other storage volume:
- If you unplug the drive, OneDrive will pause syncing automatically.
- When you reconnect the drive and restart OneDrive, syncing resumes without data loss.
- A short delay before error messages helps avoid interruptions from brief disconnections.
👉 Note: You’ll need to manually set up a new sync relationship the first time. If you move the drive between Macs, you’ll need to repeat this process on each device.
What Came Before: Non-Removable Drive Support
This improvement builds on earlier updates where OneDrive for Mac added support for non-removable external drives. Those volumes could act as primary storage while still keeping minimal state data in the user’s home directory. Now, with removable drive support, the feature set is complete.
User Benefits at a Glance
- Greater flexibility for MacBook users with smaller SSDs
- Easier cross-device workflows with portable drives
- Reduced internal storage usage without losing sync functionality
This update solves one of the most common complaints from the OneDrive for Mac community.
Final Thoughts
With removable drive support, Microsoft has addressed a long-standing limitation of OneDrive for Mac. Whether you’re a student managing course files, a creative professional working with large media projects, or just someone tired of running out of storage, this update makes OneDrive far more versatile.
If you haven’t already, make sure to update to the latest OneDrive version and set up your removable drive.
