If you are having a hard time to pair WH1000XM2 to Windows 10, then you might want to try the tip which has been mentioned below. This tip helps you to connect your WH 1000 XM2 to Windows 10 via Bluetooth. This tip helps when you cannot find your WH1000XM2 device in your Bluetooth devices screen.
When you turn on the headset for the first time after purchasing, initializing, or repairing it, the headset enters pairing mode automatically. When you want to pair a 2nd or subsequent device, press and hold the button of the headset for more than 7 seconds to enter pairing mode.
If everything worked correctly, your WH1000XM2 headset should be paired with your Windows 10 device.