Install OneDrive on an external drive

In the event that you need to change your OneDrive's storage location from your C drive to an SD card or other external storage source (such as a flash drive), here's how you can do it.


  • The OneDrive app can be downloaded and installed on a memory card in Android, but pre-installed versions cannot be moved from phone to memory card.

  • If you don't have enough room on your computer, use the Files On-Demand feature for OneDrive available for Windows and Mac, as well as selective syncing.

Check the file system of the drive

  1. Open File Explorer.

  2. Right-click the drive and choose Properties.

  3. On the General tab, next to File system, see if it says NTFS.

If the file system is FAT or FAT32, refer to the next section. Otherwise, proceed to Unlink OneDrive and run OneDrive setup again.

Convert a FAT or FAT32 drive to NTFS

Converting a drive using these steps will preserve the files on the drive. We still recommend making sure you have backups of all files on the drive.

  1. Find the letter of drive you want to convert. Open File Explorer, and in the left pane, look for the drive under "This PC" or "Computer."

  2. Press the Windows logo key + R to open the Run dialog box.

  3. Enter cmd to open the command prompt window.

  4. At the command line prompt, type convert drive: /fs:ntfs

    For example, if the letter of the drive you want to convert is e, you would type convert e: /fs:ntfs

Note: If you want to convert an NTFS drive back to FAT32, you need to save copies of any files you want to keep, and then reformat or partition the drive.

Unlink OneDrive and run OneDrive setup again

You won't lose files or data by disabling, uninstalling or unlinking OneDrive on your computer. You can always access your files by signing in to your OneDrive account online.

  1. Select the white or blue OneDrive cloud icon in the notification area, at the far right of the taskbar.

    OneDrive SyncClient with blue cloud and white cloud icons

    Note: You might need to click the Show hidden icons arrow The Show hidden icons button. next to the notification area to see the OneDrive icon. If the icon doesn't appear in the notification area, OneDrive might not be running. Select Start, type OneDrive in the search box, and then select OneDrive in the search results.

  2. Select More > Settings.

    Screenshot of getting to OneDrive Settings

  3. Click Unlink this PC.

    Note: Unlinked files can be safely deleted from your local storage, as they are also stored in the cloud and accessible through the OneDrive site.

  4. Follow the steps in the Welcome to OneDrive wizard to set up OneDrive in the new file location.

    Warning: You cannot set up Folder Protection with OneDrive on external memory.

Need more help?

Unable to sync OneDrive to an SD card or external USB drive


Get online help
See more support pages for OneDrive and OneDrive for Business.
For the OneDrive mobile app, see Troubleshoot OneDrive mobile app problems.

Email Support icon

Email support
If you still need help, shake your mobile device while you're in the OneDrive app or email the OneDrive support team. To contact OneDrive for Business support from your PC or Mac, select the OneDrive icon in the notification area or menu bar, then select More > Send feedback > I don't like something.

OneDrive for Business Admins can also view the OneDrive for Business Tech Community, Help for OneDrive for Business Admins, or contact Office 365 for business support.

Office 365 community forums

Letting us know your location may help us resolve your issue more quickly.

All fixed? If you contacted us and OneDrive starts working again, please let us know by replying to the email we sent you.

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