OneDrive File Issues

Why OneDrive File Sizes Differ Between PC and Cloud

Camila MilosovichCamila Milosovich Nov 2, 2026 870 views

Question details

The user notices that their OneDrive online storage usage is significantly higher than the size of the synchronized OneDrive folder on their local computer.

Why OneDrive File Sizes Differ Between Your PC and the Cloud
Product
Microsoft OneDrive
Device & OS
Windows
Scenario
Managing cloud storage space and synchronizing folders between Microsoft OneDrive and a local computer.
Observed behavior
The reported file size on the OneDrive web portal is much larger than the local PC's OneDrive folder size due to unsynced or unchecked folders.
Before you start

Ensure that the OneDrive desktop application is running on your PC, indicated by the cloud icon in the Windows taskbar, and that you are connected to the internet.

Solution 1Recommended

Adjust 'Choose Folders' Sync Settings

Review and modify your OneDrive synchronization settings to see which cloud folders are excluded from downloading to your local PC.

OneDrive allows users to save local disk space by keeping certain folders only in the cloud. If folders are unchecked in your sync settings, they will count toward your online storage quota but will not appear on your PC, causing a size discrepancy.

1
Open OneDrive Settings

Click the OneDrive cloud icon located in the Windows taskbar notification area. Click the gear icon (Help & Settings) and select 'Settings'.

2
Navigate to the Account Tab

In the OneDrive Settings window, click on the 'Account' tab from the sidebar menu to view your storage usage and account details.

3
Select Folders to Sync

Click the 'Choose folders' button. A list of all your OneDrive cloud folders will appear.

4
Review Unchecked Folders

Look for any folders that do not have a checkmark next to them. These unchecked folders exist online and take up cloud storage space, but they are not downloaded to your PC.

Adjust 'Choose Folders' Sync Settings
Storage Calculation: Checking a previously unsynced folder will begin downloading those files to your computer, which will increase the local OneDrive folder size to match the cloud usage.
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Frequently Asked Questions

Do unchecked OneDrive folders get deleted from the cloud?

No, unchecking a folder in the 'Choose folders' menu only removes it from your local PC to save hard drive space. The files remain safely stored in your online OneDrive account.

Can I access unsynced files without downloading them to my local drive?

Yes. You can access, view, and manually download any unsynced files by signing into the OneDrive web portal through your internet browser.

Why does my OneDrive taskbar icon show a sync error?

Sync errors typically occur if you have run out of local hard drive space, exceeded your cloud storage quota, or are experiencing internet connectivity issues. Click the taskbar icon to view the specific error message and take corrective action.