Aero Glass for Win8.1+ 1.5.3 in Aero Glass For Windows 8+ Posted July 31, 2019 22 hours ago, Ex_Brit said: "Machine ID too short" Trying to generate a new key and it tells me error machine ID too short. I thought the Machine ID was the Physical Address in cmd - ipconfig /all? It's been years since I had to generate another key and I do have plenty remaining. Can someone help as the search produces nothing. Edit: Found it, it's product ID in "About this pc" but it still doesn't work, what's going on? when Aero Glass starts it'll iirc open a windows to tell you the machine ID, otherwise, check the logs.