On 15/04/2023 14:12, Geert Stappers wrote:
If you mean did it install Debian on the NVme ssd then no, the Windows paritition was not touched.Way before "grub install" should have been asked On which disk to installI do read "two devices were effected", I think it is the same error ofOn which disk to install
I was able to restore the Windows bootloader from the Win 11 ISO command line and boot again. I could even boot Windows from the Grub menu having booted Grub from the USB, but with the USB removed the NVMe SSD just gave a Grub prompt.