If Bluetooth driver is missing or gets removed after a Windows Update, add the legacy driver from the Device Manager, install the correct driver from your manufacturer, etc.

Windows disconnects idle devices if power-saving options are enabled. This could be the reason why your mouse or keyboard keeps disconnecting. Here is how you can turn off power-saving options: ...

A driver is a small piece of software that helps your PC communicate with a certain piece of hardware, like your mouse, keyboard, or printer. Every once in a while, though, those drivers may require ...