Windows 10: Fix UEFI Boot

  1.    05 Jan 2018 #1

    Fix UEFI Boot


    I have my neighbors lenovo laptop and it will not boot. It got stuck on "restarting" and i powered it off now it will not boot. I messed around for hours with recovery tools and dos commands with no luck. Startup repair or diskpart did not work. I did have some unallocated HD space and i want to install Windows 10 on that so i started the process. The laptop boots with UEFI and was wondering if there was a way to recover the messed up main partition. The bottom line is i want to be able to dual boot.
      My ComputerSystem Spec


  2. Posts : 12
    Windows 10 Build 14393
       05 Jan 2018 #2

    Install windows 10 normally on another partition then go into file explorer and copy all of the data on the the other partition to the functional partition (exclude system files) and then delete the broken partition.
      My ComputerSystem Spec


  3. Posts : 5,660
    Windows 10 Pro X64 16299.192
       05 Jan 2018 #3

    Did you try chkdsk /x /f /r from the Command Prompt of a install DVD or flash drive ?

    If no help, try

    bootrec /scanos
    bootrec /rebuildbcd
    bootrec /fixboot
    bootrec /fixmbr


    Reboot and see if that resolved the problem.
      My ComputersSystem Spec

  4.    05 Jan 2018 #4

    Ztruker said: View Post
    Did you try chkdsk /x /f /r from the Command Prompt of a install DVD or flash drive ?

    If no help, try

    bootrec /scanos
    bootrec /rebuildbcd
    bootrec /fixboot
    bootrec /fixmbr


    Reboot and see if that resolved the problem.
    I did try this earlier fixboot said access was denied
      My ComputerSystem Spec


  5. Posts : 5,660
    Windows 10 Pro X64 16299.192
       06 Jan 2018 #5

    You booted the install DVD or flash drive? Took the Repair your computer choice to get to a Command Prompt?

    Please post the results of the following from the Command Prompt:

    diskpart
    list disk
    sel disk # (where # is the disk Windows 10 is on)
    detail disk

    Capture with a digital camera or your phone and post the picture here please.
      My ComputersSystem Spec

  6.    19 Jan 2018 #6

    In this case I would recommend using a Linux Live Fedora Bootable USB. This will allow you to Access the HDD and copy over important files to an external HDD. After this is done you can safely clean install Windows 10 properly.
      My ComputerSystem Spec

  7.    19 Jan 2018 #7

    Linux solutions NO LONGER WORK unless you have disabled Fast Startup in Win10 because with that enabled (which it is by default!), when you go to access the Windows filesystem, Linux will complain that it can't mount the volumes! That is because Fast Startup keeps the volumes mounted, even when Windows is not running, and Linux will not mount them a second time.
      My ComputerSystem Spec

  8.    19 Jan 2018 #8

    Mark Phelps said: View Post
    Linux solutions NO LONGER WORK unless you have disabled Fast Startup in Win10 because with that enabled (which it is by default!), when you go to access the Windows filesystem, Linux will complain that it can't mount the volumes! That is because Fast Startup keeps the volumes mounted, even when Windows is not running, and Linux will not mount them a second time.
    If you get an error message like the following:
    “Unable to access “xxx GB Volume” The NTFS partition is an unsafe state. Please resume and shutdown Windows fully (no hibernation or fast restarting), or mount the volume read-only with the ‘ro’ mount option.

    To the top left click Activities and then left click Show Applications:

    To the right, select the orb to move down to the next screen or applications:

    Left click Utilities:

    Left Click Disks:

    To the left ensure you have your Windows HDD/SSD selected:

    Select the largest partition by left clicking on it and left click the settings crank:

    Select Edit Mount Settings:

    Turn Automatic Mount Options off:

    Left click the field:
    nosuid.nodev,nofail,x-gvfs-show

    At the end add ,ro with no spaces (comma) so it says:
    nosuid.nodev,nofail,x-gvfs-show,ro

    Select ok and now your Windows HDD/SSD will be read only allowing you to copy the data from it.
      My ComputerSystem Spec


 

Related Threads
After running MBR2GPT on my system with a successful completion, I realized that I don't know how to change the BIOS from legacy to UEFI, resulting in the inability to boot the GPT'ed system. I was running Windows 10 Creator on an MBR system using...
Is there currently any way to configure a custom boot logo for UEFI booting? I can only find methods for Legacy users, but no luck with UEFI. I'm kind of new to custom boot logos, so if anybody could give me some information as to if it's...
I want to enable UEFI with Secure Boot and I do have an option to enable Secure Boot. But how can I tell if I am running UEFI firmware version 2.3.1.c ? Because to enable Secure Boot, machines must have UEFI firmware version 2.3.1.c I went to...
Hei, So I'm the guy who tried to move from Legacy to UEFI some days ago. I managed to move both Ubuntu and W10 to UEFI. More info on both of the situations here: Solved Can't boot into UEFI mode - Lenovo Z50-70 - Windows 10 Forums ...
Recently I played around with dual booting Linux Mint on my system. I decided that I would delete it for the present as I have other things to focus on. However, after deleting partitions and fixing my MBR to only boot windows my UEFI BIOS still...
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 01:30.
Find Us