Q. My bluetooth has disappeared from my computer. It is not in device manager. I can’t find anything on my computer when I search for bluetooth through cortana even though I have used bluetooth on my laptop before. 

How do I get it back?

Answer.

Step 1:

I would suggest you check if Bluetooth Support service is started.

1. Press Windows + R keys on the keyboard, type services.msc and press OK.
2. Now, find Bluetooth Support Service and start it
3. Double click on the Bluetooth Support Service set the startup type as Automatic.   

Reference: I would suggest you to check whether the drivers are up to date. Refer to the below link on how to download and install the drivers in Windows 10.

How to: Install and Update drivers in Windows 10