Yes, the Slim EX Wireless Mouse works with Windows 11 and Windows 10 over both Bluetooth and the 2.4GHz USB-C receiver.

To pair over Bluetooth on Windows:

1. Open Settings, then Bluetooth & devices, then Add device, then Bluetooth.
2. Turn on the Slim EX Wireless Mouse.
3. Hold the pairing button for 3 to 5 seconds until the white LED flashes.
4. Select "EX Mouse" and click Next.