How do I reassign hot keys for my keyboard? - Microsoft Support
You can reassign some keys to access different commands, shortcuts, or Microsoft Mouse and Keyboard Center features to better fit your work style. Note: The options listed in this wizard vary depending on the key selected.
Troubleshoot problems with your Microsoft mouse or keyboard
If your Microsoft or Surface mouse or keyboard isn’t working, doesn’t appear in the list of Bluetooth devices when you pair the mouse, or you see an error message during pairing, here are some troubleshooting steps to help.
Contact - Microsoft Support
Get in touch with Microsoft Support for assistance with Microsoft products and services.