Unable to reinstall Windows 8 with Error code: 0xc000000f "File:\Windows\system32\winload.efi" Original title: ask the community I have got a problem in loading the operating system, only the following details are shown on screen. My laptop is DELL VOSTRO, Model 3560, windows 8,64 BIT 3RD GEN i5 Recovery Your PC needs to be repaired The application or operating system couldn't be loaded because a required file is missing or contains error. File:\Windows\system32\winload.efi Error code: 0xc000000f You'll need to use the recovery tools on your installation media. If you don't have any installation media (like a disc or USB device), contact your system administrator or PC manufacture. Press Enter to try again Press F8 for Startup Settings Press Esc for UEFI Firmware settings When I press Enter OR F8 screen just flashes but nothing happens and I also tried to re-install windows 8, installation was successful but windows could not load but appeared that couldn't attempt the repairs.