Change boot back from efi to mbr

Page 2 of 2 FirstFirst 12
  1. NavyLCDR's Avatar
    Posts : 15,507
    Windows 10 Pro
       #11

    Most UEFI computers will only boot in UEFI mode from FAT32 partitions. Your motherboard, apparently, does not have that limitation. I am not sure if the "Failure when attempting to copy boot files" is due to the fact that you are attempting to set up UEFI booting (with the /f ALL option) on the NTFS partition with the OS or if there is some other problem.

    The standard layout for UEFI booting is to have a small, FAT32 EFI System at the front of the drive that the computer boots from.

    One possible solution would be to install Macrium Reflect Free:
    Macrium Software | Macrium Reflect Free

    Run it and create a Macrium Reflect rescue USB flash drive. Boot the computer from the flash drive and then under the restore menu will be a utility to Fix Windows Boot problems. Run that utility and see what bootable partitions it finds and run the option to repair it.

    The other option would be to shrink C: drive partition to create 100 MB free space to create a FAT32 EFI System partition in, then try to write the boot files to it using the bcdboot command.
      My Computer


  2. Posts : 6
    Windows 10
    Thread Starter
       #12

    Ahh, that was a stupid mistake from me, forgot to run it as admin. But I still get the same problem as before, the C: drive does not show up as a bootable drive.

    - - - Updated - - -

    Thanks for the awnser NavyLCDR. Don't have the time to try the solution you have sugested this weekend so will try it out next week.
      My Computer


 
Page 2 of 2 FirstFirst 12

  Related Discussions
Our Sites
Site Links
About Us
Windows 10 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 10" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd
All times are GMT -5. The time now is 02:45.
Find Us




Windows 10 Forums