Until yesterday I had a dual-boot of Windows 8.1 with linux Mint 17.2 Rafaella Cinnamon 64bit.

Via the terminal I deleted something that I shouldn't and then when I rebooted the PC, linux stuck at the Mint logo. So I decided to delete the linux. In Windows I deleted the linux partition restarted the PC and a GNU prompt would appear and I couldn't load windows.As a solution i found two ways to delete gnu and be able to load windows normally.

The first one included using the Windows installation disk go to repair open CMD and type /bootrec.exe fixmbr, /bootrec.exe /fixboot (tried it several times with different order) didn't work (GNU was still there). Then I found this How to boot windows after uninstalling ubuntu?, which apparently removed GNU, since the PC boots Windows. After that Windows work fine. Now when I boot linux from live DVD, the screen says could not open "\EFI\BOOT\fallback.efi" :14. Also when I want to install linux alongside windows, it doesn't recognise that the HDD has another OS. I really need to install linux again so what can i do? If I select something else for install will it affect windows 8.1?

  • New problem now i reinstalled linux mint in EFI mode as my custom installation of windows is.At the end of the install when i was told to restart an error occured something with monitor i think.I did forced shut down,started the pc grub showed and i logged to windows.Then i restarted the pc and grub was gone,now it boots directly to windows.What can i do? – gr7 Aug 30 '15 at 15:46
  • I'd boot from the live CD(/DVD/USB) and install GRUB manually. – LinuxSecurityFreak Aug 30 '15 at 17:21
  • thanks for your answer can you provide more information? – gr7 Aug 30 '15 at 17:36
  • i found the solution in this tweaking4all.com/os-tips-and-tricks/… – gr7 Sep 7 '15 at 17:09

The solution to my situation was found in http://www.tweaking4all.com/os-tips-and-tricks/uefi-dual-boot-windows81-ubuntu/

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