Install updates on your Surface Duo to keep it running smoothly and securely with all the latest improvements and features. When you install an update, it’ll be downloaded to your Surface Duo and then installed.
To find out what’s included in each update, see Surface Duo 2 update history or Surface Duo update history
Connect to a Wi-Fi network you trust. Learn how
On your Home screen, tap Settings.
In Settings, tap System > System update > Check for update.
After the update is downloaded and installed, tap Restart now.