I transferred several files from OneDrive to an external hard drive, but afterward the free space on my C: drive dropped from about 4 GB to 1.9 GB. It looks like OneDrive may have downloaded local copies before the transfer finished. How can I safely remove those local copies and reclaim the space without deleting the files from OneDrive?
3 Answers
It’s also worth checking whether the files were copied rather than moved. In that case, OneDrive may have downloaded a local copy while the external drive received another copy. Confirm the external files are intact before removing anything, then make the OneDrive versions online-only to recover the C: drive space.
Copying files from OneDrive usually downloads them to the computer first, which can temporarily or permanently use space on the system drive. If the files show a solid green check mark, they’re stored locally. You can use OneDrive’s “Free up space” option afterward, or adjust which folders are synced locally. A disk-usage tool such as TreeSize can also help identify exactly what is taking up the missing space.
Right-click the files or folders in your OneDrive folder and choose “Free up space.” That removes the locally stored copies from the C: drive while keeping the files available in the cloud. Make sure the files have finished syncing first and that you still have the copies you want on the external drive.
That may be what happened—the files appeared to download to the main drive during the transfer, as indicated by the green check status.