I am using Windows 11 trying to update a Driveluxe 50 and it is just stuck on Preparing Device for Software Update. Have tried it a number of times and waited 30 minutes to an hour. I saw your other post that suggested going to the developer screen and setting mpt to mass storage when using Window 10, which I did. Still getting the same thing and I verified that the Driveluxe has mpt set to mass storage after cycling power. I know the PC and software are fine as I also have a Zumo XT that I recently updated with no problems.
Thanks,
Kev