Check whether your PC already has Bluetooth
Open Device Manager
Look for a Bluetooth section
Check Settings > Bluetooth & devices
If Bluetooth is missing, install a Bluetooth adapter
Buy a USB Bluetooth dongle
Plug the Bluetooth dongle into a USB port
Install the adapter driver if needed
Restart the PC
Turn on Bluetooth in Windows settings
Pair your device from Bluetooth & devices
Update Windows if Bluetooth still does not appear
Update chipset and Bluetooth drivers from the PC or adapter manufacturer
Enable Bluetooth in BIOS or UEFI if your PC supports it
Use a Wi-Fi/Bluetooth combo card if your desktop has an internal expansion slot