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OneDrive File Issues

How to Stop OneDrive and SharePoint Sync to Save Local Storage

Bushra ParveenBushra Parveen Sep 27, 2026 869 views

Question details

The user needs to prevent massive OneDrive and SharePoint synchronization from consuming terabytes of local disk space and tying up system resources, particularly after reinstalling the operating system.

How to Stop OneDrive and SharePoint Sync and Access Files Online
Product
Microsoft OneDrive and SharePoint
Device & OS
Windows
Scenario
Following a fresh Windows reinstallation, OneDrive attempts to perform a massive initial synchronization of terabytes of cloud data from SharePoint and personal drives.
Observed behavior
The initial synchronization process takes days to complete. Furthermore, online-only files either appear unavailable or unexpectedly consume significant local storage space despite showing 0 KB.
Before you start

Before altering your synchronization settings, ensure your PC is connected to a stable internet connection and let any pending critical personal file uploads complete so you do not lose recent un-synced work.

Solution 1Recommended

Stop Syncing Specific SharePoint or OneDrive Folders

Use this method to select only essential folders for local synchronization, preventing massive cloud repositories from downloading to your hard drive.

By default, setting up OneDrive might trigger a full sync of previously connected SharePoint libraries. You can manually pause or completely sever the connection to non-essential libraries.

1
Access OneDrive Settings

Click the blue or white OneDrive cloud icon located in the Windows system tray (bottom-right corner of the taskbar), click the Gear icon, and select 'Settings'.

2
Stop Syncing SharePoint Libraries

Navigate to the 'Account' tab. Locate the specific SharePoint library or OneDrive folder that is downloading massive amounts of data, and click 'Stop sync' next to it.

3
Choose Specific Folders

For personal OneDrive folders, click 'Choose folders' under your account and uncheck the large directories that you only wish to access via the web browser.

Stop Syncing Specific SharePoint or OneDrive Folders
Safe Local Deletion: Once you click 'Stop sync', the folder is disconnected from the cloud. You can safely delete the remaining local folder on your PC to free up space without affecting the files in SharePoint.
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QA img-9

Frequently Asked Questions

Why do online-only OneDrive files consume local disk space after reinstalling Windows?

During a massive initial synchronization, OneDrive caches data temporarily to index and build the folder structure. Additionally, known bugs can occasionally cause 0 KB placeholder files to improperly allocate local storage space.

Can I access my SharePoint files without installing or syncing OneDrive?

Yes. You can access all your SharePoint and OneDrive files directly through your web browser by logging into the Microsoft 365 portal, entirely bypassing the need for local folder synchronization.

What happens when I click 'Stop sync' for a SharePoint folder?

The folder will stop communicating with the cloud. The files that were already downloaded will remain on your local hard drive as standard, disconnected files. You can delete these local copies to free up space, and the original files in SharePoint will remain safely untouched.

Why is my OneDrive sync stuck on 'Processing changes' for days?

When synchronizing terabytes of data or millions of small files, the OneDrive client can become overwhelmed during the indexing phase. Pausing the sync, choosing fewer folders, or utilizing Files On-Demand can alleviate this bottleneck.