Make sure your PC has Bluetooth enabled before putting your headphones into pairing mode. To do this, go to Settings, select Devices, and click on the Bluetooth and other devices option in the menu pane on the left side to pull up the Bluetooth switch. Toggle it to on if it isn’t already on. If there isn’t any Bluetooth switch visible in the Bluetooth and other devices menu, then you may need to open the Bluetooth troubleshooter (Settings > Update & Security > Troubleshoot > Bluetooth > Run the troubleshooter) to check if your PC has Bluetooth capability. If not, then you’ll need to go to your PC manufacturer’s website and search for updated drivers that enable Bluetooth support. [1] X Trustworthy Source Microsoft Support Technical support and product information from Microsoft. Go to source