How to Reduce OneDrive Sync Traffic on Metered Networks

If you work from a location with a metered internet connection, such as a cellular hotspot or a limited-data plan, OneDrive sync can consume your monthly data allowance quickly. Each file change, upload, or download uses bandwidth, and background sync may run even when you are not actively working. This article explains how to configure OneDrive to minimize data usage on metered networks. You will learn to set bandwidth limits, pause sync on metered connections, and manage file availability to reduce traffic.

How OneDrive Sync Consumes Bandwidth on Metered Networks

OneDrive syncs files continuously in the background by default. When you add, modify, or delete a file on any synced device, OneDrive uploads the change to the cloud and downloads it to other linked devices. On a metered network, every kilobyte of that sync counts toward your data cap.

Windows 10 and Windows 11 include a metered network feature that helps apps like OneDrive reduce their data usage. When a network is set as metered, Windows signals apps to limit background activity. OneDrive respects this signal by pausing automatic sync on metered connections. However, if you manually start sync or if the network is not marked as metered, OneDrive may still consume bandwidth.

OneDrive also downloads files when you open them from File Explorer if you use Files On-Demand. Opening a file that is only stored in the cloud triggers a full download. Repeatedly opening large files on a metered network can quickly drain your data allowance.

Steps to Reduce OneDrive Sync Traffic on Metered Networks

The following steps cover three methods to reduce OneDrive data usage on metered networks. You can use one or combine them depending on your needs.

1. Set your Wi-Fi network as metered in Windows
   Open Windows 11 Settings by pressing the Windows key and I together. Go to Network & internet > Wi-Fi. Select the network you are connected to. Turn on the toggle for Metered connection. In Windows 10, go to Settings > Network & Internet > Wi-Fi > Manage known networks, select the network, then choose Properties and set Metered connection to On. This tells OneDrive to pause automatic sync on this network.
2. Pause OneDrive sync manually
   Right-click the OneDrive cloud icon in the system tray near the clock. Select Pause syncing and choose a duration: 2 hours, 8 hours, or 24 hours. To resume sync early, right-click the icon again and select Resume syncing. This stops all uploads and downloads immediately.
3. Limit OneDrive bandwidth in advanced settings
   Right-click the OneDrive cloud icon and select Settings. Go to the Sync and backup tab. Click Advanced settings. Under Bandwidth limits, set the Download rate limit and Upload rate limit to a value such as 256 KB/s or 512 KB/s. Click OK to apply. This caps the maximum speed OneDrive can use, reducing peak data consumption.
4. Change Files On-Demand to online-only for large folders
   In File Explorer, navigate to the OneDrive folder. Right-click a folder that contains large files and select Free up space. This changes the folder to online-only mode. Files appear in File Explorer but are not downloaded until you open them. To reverse this, right-click the folder and select Always keep on this device.
5. Disable automatic syncing of Office files
   Open OneDrive settings by right-clicking the cloud icon and selecting Settings. Go to the Office tab. Uncheck the box for Use Office 2016 or later to sync Office files that I open. This prevents OneDrive from downloading Office files in the background when you open them. You will need to save files manually to the local folder.

If OneDrive Still Uses Too Much Data After Configuration

OneDrive syncs data even when set to pause

If you pause syncing but OneDrive continues to show activity, check that the pause duration has not expired. Also verify that you are not running a second instance of OneDrive. Open Task Manager by pressing Ctrl + Shift + Escape. Under the Processes tab, look for multiple Microsoft OneDrive entries. If you see more than one, sign out of the extra instance by right-clicking its icon and selecting Settings > Account > Unlink this PC.

Files On-Demand downloads files unexpectedly

Some third-party backup or antivirus software may scan the OneDrive folder and trigger file downloads. To prevent this, exclude the OneDrive folder from real-time scanning in your security software. In Windows Security, go to Virus & threat protection > Manage settings > Exclusions > Add or remove exclusions. Add the full path to your OneDrive folder, typically C:\Users\YourName\OneDrive.

Metered network setting does not stop sync

OneDrive on Windows 10 version 1809 or older may not fully respect the metered network flag. Update Windows to the latest version by going to Settings > Update & Security > Windows Update > Check for updates. After updating, restart your PC and verify the metered setting is still enabled.

Files On-Demand vs Always Keep on This Device: Bandwidth Impact

Item	Files On-Demand (Online-Only)	Always Keep on This Device
Description	Files appear in File Explorer but stay in the cloud until opened	All files in the folder are downloaded to local storage
Bandwidth usage	Minimal until you open a file; then the file downloads in full	Initial download of all files uses full bandwidth; subsequent sync uses only changes
Local storage	Uses almost no disk space	Uses disk space equal to total file size
Best for metered networks	Yes — allows you to choose which files to download	No — downloads everything regardless of need

You can now control how much data OneDrive uses on metered networks by marking the network as metered, pausing sync manually, or limiting bandwidth. Try using Files On-Demand with the Free up space option to keep only essential files local. An advanced tip: create a script using the OneDrive.exe /shutdown command to stop the sync process entirely when you connect to a metered network, and use OneDrive.exe /background to restart it when you reconnect to an unmetered connection.