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OneDrive File Issues

Can OneDrive Sync Folders from Both C and D Drives?

Steve KSteve K Sep 28, 2026 869 views

Question details

The user wants to know if OneDrive can be configured to synchronize separate folders located on multiple local hard drives, such as the C and D drives, at the same time.

Product
Microsoft OneDrive
Device & OS
Windows
Scenario
Attempting to sync or back up files that are spread across different local disk partitions without moving them all to the C drive.
Observed behavior
OneDrive natively restricts synchronization to a single designated root folder on one drive, preventing users from selecting additional folders located on other drives.
Before you start

Check your current OneDrive storage folder location in File Explorer and verify that your Windows operating system is updated to support the Files On-Demand feature.

Solution 1Recommended

Use OneDrive Files On-Demand to Save Space

Since OneDrive requires all synced folders to remain in a single root directory on the configured drive, you can use Files On-Demand to keep files online-only, freeing up local disk space so you don't need to move folders to the D drive.

OneDrive does not normally synchronize separate Windows system folders from multiple drive locations. Instead of attempting to span sync across C and D drives, the most effective workaround is to optimize your primary drive's storage.

1
Open OneDrive Settings

Click the OneDrive cloud icon in the Windows taskbar notification area. Click the gear icon at the top right of the flyout menu and select 'Settings'.

2
Enable Files On-Demand

Navigate to the 'Sync and backup' tab (or the 'Settings' tab in older versions), expand 'Advanced settings', and toggle on 'Files On-Demand'.

3
Free up local space

Open File Explorer, locate your OneDrive folder, right-click any large folders (like your system photo folder) that you want to remove from your local drive, and select 'Free up space'. The files will remain safely in the cloud.

Use OneDrive Files On-Demand to Save Space
Cloud-Only Files: Files marked with a cloud icon take up zero space on your local hard drive but can still be browsed in File Explorer and downloaded automatically when opened.
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Frequently Asked Questions

Can I use symbolic links to sync a folder on the D drive to OneDrive?

Yes, advanced users can use the Command Prompt to create directory junctions (symbolic links) that map a folder on the D drive to a location inside the OneDrive folder on the C drive. However, this is not officially supported by Microsoft and can occasionally lead to sync errors or duplicated data.

Why does OneDrive restrict syncing to a single folder location?

OneDrive is designed to monitor a single root directory to ensure reliable real-time syncing and to prevent complex file conflicts. Restricting synchronization to one designated folder simplifies file indexing and system resource management.

Will I lose my files if I use the 'Free up space' feature?

No. Using 'Free up space' only removes the locally cached copy of the file from your hard drive to save space. The original file remains securely stored in your online OneDrive cloud and can be downloaded again at any time.