1. Bluetooth driver may be missing or not installed.
We are on the computer desktop right click on the "Computer" and then click on the management will find the left "Device Manager" and then we can see the Bluetooth status, enter after we see if the Bluetooth icon has a yellow exclamation point, if it is the Bluetooth driver is the problem oh.
2. is not our artificial turn off the Bluetooth function, this as long as the opening can be.
3. Bluetooth service startup key shutdown caused.
We press Win+x to enter "Services.msc" in the pop-up run box and we find the Bluetooth Support service in the open window, and then we double-click or right-click on "Properties" to open the Bluetooth Support Service property interface.
If we see the boot type of the Bluetooth Support service selected as "manual" We first click "Start" to start the service, then change the startup type to Automatic, and the next time it starts automatically.
4. To see if the BIOS is missing the blue teeth, we began to enter the BIOS management interface to find the Devices option in the USB setup is not a Bluetooth enabled state, If yes we set it to Enabled and then press F10 to save the restart to be resolved.