Something similar already happened when bicycle manufacturer VanMoof went under. I believe there was a workaround if you extracted your bike’s crypto keys before the servers went down but otherwise you were practically screwed.

The difference is, that you could just continue using XP until Win7 was released or continue using Win7 until Win10 was released. Win10 will reach end of life next year and then the only supported Windows will be Windows 11. Vista or Win8 were never as forced as Win11 is now.