How to set Ethernet as a metered connection in Windows 10?

If you are on Windows 10 Creator's Update or newer (see this answer for older versions) click on Ethernet on the left hand column, then click on the name of your network connection.

from there you can flip the switch to set it as a metered connection.

1. Use the Windows key + R to open the Run command, type regedit, and click OK to open the Windows registry.

2. Browse the following path:

   HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\NetworkList\DefaultMediaCost
   

3. Right-click the DefaultMediaCost key and select Permissions.

4. On the Security tab, click the Advanced button.

5. Next to TrustedInstaller, click the Change link.

6. Type Administrators, and click the Check Names button to make sure you're typing the correct object.

7. Click OK.

8. On the Advanced Security Settings for DefaultMediaCost, check the "Replace owner on subcontainers and objects".

9. Click Apply.

10. Click OK.

11. On Permissions for DefaultMediaCost, select the Administrators group, and then make sure to check the allow Full Control box.

12. Click Apply.

13. Click OK.

14. On the DefaultMediaCost key, you'll find different entries, including for 3G, 4G, Default, Ethernet, and WiFi with their default data values: 1 or 2. The data value 1 means that the connection type is non-metered, and the data value of 2 means that the connection type is metered. Double-click the Ethernet DWORD (32-bit) Value key, and change the value to 2.

15. Click OK.

16. Close the registry and restart your computer to complete the process.

How to Make Sure it's working

If you want to verify your Ethernet connection is set to metered, you can use apps, such as the desktop version of Outlook, which will detect and alert you that you are using a metered connection, as you probably won't see any "Metered network" statics on the App history tab in Task Manager.

NOTE: Once you set a metered connection, the operating system will stop using the internet in many ways. For example:

• Windows updates will no longer download automatically. However, priority updates will continue to download when available.
• Apps will no longer update automatically.
• Live Tiles on the Start menu may stop downloading updates.
• Offline content may not sync with other devices.

In the case you want to revert to the original settings, using the same instructions mentioned above, make sure to change the Ethernet key data value from 2 to 1.