Le 24/02/2017 à 01:32, Steve McIntyre a écrit :
Alternatively, you may have booted the installer in BIOS/CSM mode, in which case it might install but fail to install a boot loader at the end of the process.
Even if the boot loader is successfully installed, it would be a BIOS/legacy bootloader, and the UEFI firmware usually gives higher priority to EFI boot loaders, Windows Boot Manager here.
*Or* you have installed in UEFI mode, but the
firmware on your computer is just ignoring the Debian-installed boot option. That's always possible on some bad UEFI implementations, unfortunately.
I have seen this too on a HP laptop. The workaround was to choose to install GRUB in the "removable path" (that's what Windows do).