As long as you don't go ahead and try anything else i think rEFIfnd on a usb stick should be able to use the files you still have and give you options to boot. So where you are now i will mention possible steps forwardġ) Since you just installed Mint and haven't really used it you could re-install make sure to the hd with EFI, run update grub and that should fix menuĢ) get either of the OS Windows or Mint up and running and fix from there. If after your install you ran update-grub that would/should have added Windows to your menu. You then tried to install grub, but that ended up being old style on the mbr partition. That means boot stuff would involve a circa 100mb EFI partition. So looking very briefly at output its hinting at a uefi firmware motherboard. There are several reasons why a Windows-based computer may have problems duri1.PreBoot: The PCs firmware initiates a power-on self test (POST) and loads fir2.Windows Boot Manager: Windows Boot Manager finds and starts the Windows lo3. I think we can expand maybe and extra info might help Wiz when he returns.įirst a debrief is always useful (just can't escape out of my character)

Windows boot manager not working