I had this exact problem. I accidentally set the keyboard language to Finnish instead of English. I did find that you can edit the unattend.xml using dism.


Create a directory. In this example I...

I had the same issue then switched the pen from AES to MMP protocol by holding the 2 side buttons at the same time for 2 seconds. 2 flashes will confirm MMP (1 for AES). Pen instantly started working...