OneDrive File Issues

Fix OneDrive Not Enough Space Error When Copying Files

Nimra Malik Oct 14, 2026 868 views

Question details

The user needs to resolve an issue where attempting to copy files from OneDrive to a local drive triggers a storage warning, falsely indicating insufficient destination space.

How to Fix the OneDrive Not Enough Space Error When Copying Files

Product: Microsoft OneDrive
Device & OS: not provided
Scenario: Copying synchronized cloud files from a OneDrive folder to a local hard drive destination.
Observed behavior: A 'not enough space' error appears and halts the file copy process, typically because Files On-Demand placeholders are not fully downloaded before the transfer.

Before you start

Verify that your destination local drive genuinely has enough free space for the files, and ensure that none of the files you are trying to copy are currently open in other programs.

Solution 1Recommended

Download Files Locally Before Copying

This is the most effective method, as it forces Windows to replace the cloud placeholder with the actual file, preventing size calculation errors during the copy process.

When OneDrive's Files On-Demand feature is active, files in your folder are often just shortcuts to cloud files. Trying to copy them directly to another drive can confuse Windows into triggering a space error.

Open File Explorer

Navigate to the specific OneDrive folder where your files are located.

Select the Target Files

Highlight the files or entire folders you want to copy to your local drive.

Keep on Device

Right-click the selected items and choose "Always keep on this device" from the context menu.

Wait for the Download

Wait until the status icon next to the files turns into a solid green circle with a white checkmark, indicating the files are fully downloaded.

Copy the Files

Once fully downloaded, copy and paste the files to your local hard drive destination as you normally would.

File Download Complete: Once the files are fully local, the storage warning should no longer appear when transferring them.

Solution 2

Copy Files in Smaller Batches

Copying a massive amount of cloud-only files at once can overwhelm the Windows cache. Breaking the transfer into smaller groups can help bypass the storage error.

Solution 3

Check and Restart the OneDrive Sync App

Sync glitches can sometimes trigger false storage errors. Restarting the OneDrive app ensures your connection is refreshed and stable.

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Frequently Asked Questions

Why does OneDrive say there is not enough space when my hard drive is mostly empty?

This occurs because OneDrive uses "Files On-Demand," which keeps only tiny placeholder files on your PC to save space. When you try to copy these placeholders, Windows occasionally miscalculates the local cache space required to download and process the full files on the fly.

How do I turn off OneDrive Files On-Demand entirely?

Click the OneDrive icon in your taskbar, select the gear icon to open Settings, navigate to the "Sync and backup" or "Advanced settings" menu, and toggle off the "Files On-Demand" feature. This will prompt OneDrive to download all your files to your PC permanently.

Will copying a OneDrive file remove it from my cloud storage?

No. When you use the standard copy and paste function from your local OneDrive folder to another local hard drive, it creates a duplicate. The original file remains safely stored in your OneDrive cloud account.

Document & File Issues