We are aware that some Microsoft Arc Touch Mouse Surface Edition and Arc Touch Bluetooth Mouse users may have experienced Bluetooth connection and disconnection issues after upgrading to Windows 10 Creators Update.
The Cumulative Update released on June 13, 2017 (KB4022725) includes fixes that should resolve these issues.
Make sure your device is up to date by installing the latest Windows Updates (Start >
Settings > Update & security >
Windows Update > Check for updates).
You can also try running the Bluetooth troubleshooter first to see if that helps. You can find it
Settings > Update & security > Troubleshoot under
Find and fix other problems.
If these steps didn’t help, try turning your mouse off, then on, and then try to pair it again (it may take multiple pairing attempts).