Turn on Bluetooth on your PC
Put the Wiimote in pairing mode by pressing the red sync button inside the battery cover
Open Bluetooth settings on your PC
Add a new Bluetooth device
Select the Wiimote when it appears as a device
If prompted for a PIN, choose Pair without code or enter 0000
Install and open a Wiimote-compatible program if needed, such as Dolphin, WiinUPro, or BetterJoy
Configure the Wiimote inside the program
Reconnect by pressing the sync button again if the connection drops