Windows 10: UEFI remove unwanted boot entries from BIOS solved easily

Discus and support UEFI remove unwanted boot entries from BIOS solved easily in Windows 10 Support to solve the problem; Hi folks with UEFI if you've installed say some Linux versions and you don't want them any more you might still see these at boot if you go into your... Discussion in 'Windows 10 Support' started by jimbo45, Aug 10, 2018.

  1. jimbo45 Win User

    UEFI remove unwanted boot entries from BIOS solved easily


    Hi folks
    with UEFI if you've installed say some Linux versions and you don't want them any more you might still see these at boot if you go into your BIOS boot menu.

    Easy way to fix these i.e remove them

    1) Go into command mode (run as administrator)
    2) type bcdedit /enum firmware (space between enum and firmware

    3)Now you'll see a list

    4) To delete entries you don't want
    type bcdedit delete identifier where the identifier is shown in your list. Include the sigiddly braces { }

    Easy -- job done

    If you are worried about this just simply backup the EFI partition with Macrium - you don't need to back up the rest of the system. If boot fails because you deleted wrong entry simply restore the EFI partition (it's only 100MB or so - takes seconds with macrium and works -- I deliberately hosed up an entry to test this --restored partition and system booted fine).

    Cheers
    jimbo

    :)
     
    jimbo45, Aug 10, 2018
    #1
  2. Andre for Directly Win User

    Can't disable secure boot in bios/uefi

    Can you attempt the suggested steps in the following article?

    https://www.qualityology.com/tech/disable-asus-...

    Note: This is a non-Microsoft website. The page appears to be providing accurate, safe information. Watch out for ads on the site that may advertise products frequently classified as a PUP (Potentially Unwanted Products). Thoroughly research any product advertised
    on the site before you decide to download and install it.
     
    Andre for Directly, Aug 10, 2018
    #2
  3. Greg Carmack - Windows MVP Win User
    No "Windows Boot Manager" entry of Boot Configuration of UEFI for Surface Pro 4

    The only way I'm aware Windows Boot Manager will not set itself first to boot on a UEFI System is if it was installed in CSM or Legacy Mode. You can tell this in Disk Management by the presence of the legacy Active flag on System partition and lack of an
    EFI System partition, or type msinfo in Start search to look in System Information at BIOS mode.

    Sometimes the settings in the UEFI firmware are sparse and the only determinative for UEFI install is if the installation media is booted as a UEFI device and all partitions deleted down to Unallocated Space to reset if necessary the disk formatting from
    MBR to GPT required for UEFI install.

    The normal UEFI settings in BIOS are CSM, Legacy BIOS, UEFI, and under Boot Priority order. If you want to report back those settings choices we can help interpret them.

    If the Windows Boot Manager was deleted from the list then you may need to Reset UEFI Firmware to Defaults using that choice wherever it appears - check all tabs.
     
    Greg Carmack - Windows MVP, Aug 10, 2018
    #3
  4. newconroer Win User

    UEFI remove unwanted boot entries from BIOS solved easily

    UEFI boot options disappeared from BIOS; now getting reboot and select proper boot device

    In short, I need to get the system/BIOS to allow UEFI booting of the SSD.

    Computer started up today with default BIOS settings.

    • Only SSD 1(Windows boot) and SSD 2 were listed in BIOS; HDD 1 and HDD 2 were not visible
    • System would not boot. Gave the 'reboot and select proper boot device' message
    • Boot menu has no UEFI/EFI (or Windows Boot Manager) entries anymore
    I went into Partition Magic/Gparted and confirmed :

    • All drives are still showing
    • All drives' data is in tact [EFI volume/partition is still listed (and can be browsed/files accessible)]
    Gparted print out (note dev/sda2 apparently that is normal behavior) :

    /dev/sda1 (locked) EFI System Partition--Fat32--/media/sda1--100.00mb--46.81MiB--53.19MiB--boot,esp
    /dev/sda2 (exclamation mark) Microsoft reserved partition--unknown file system--no mount point--128.00MiB--unused spaced--msftres
    /dev/sda3 basic data partition--ntfs--/media/sda3--118.58GiB--70.78GiB--47.80GiB--msftdata
    /dev/sda4--ntfs--/media/sda4--450.00MiB--327.71MiB--122.29MiB--hidden,diag



    As I am able to boot Windows installation from USB, I tried the standard startup repair. It said it was not able to fix any problems.

    Next I tried to repair the EFI with Diskpart in the shell:

    • sel vol 1 (note that Diskpart states EFI partition is 'hidden')
    • assign letter=z:
    • cd /d z:\EFI\Microsoft\Boot\
    • bootrec /fixboot
    • bcdboot c:\Windows /l en-us /s vz /f ALL
    It completed all tasks successfully. Unfortunately that did not work.

    Other things I have tried :

    • Removing CMOS battery and replacing with a new one - my HDD started showing up again after doing this.
    • Using the old MBR commands(in hopes it would force the Windows startup repair to recognize and fix a problem)
    bootrec /fixmbr
    bootrec /fixboot
    bootrec /scanos
    bootrec /rebuildbcd​
    • Loaded BIOS 'optimized'/defaults (the system did this already once before, hence why I am in this situation, though doing it manually seemed like an option worth trying. Note that after doing this and restarting the system, HDD's stopped showing again)
    • Removed new CMOS battery and left it out of the system for thirty minutes
    • Formatted EFI and msftres partitions, then rebuilt the EFI boot records
    In summary, am looking to force the BIOS to see the EFI partition on the SSD boot drive, as it is not an option any longer.
     
    newconroer, Aug 10, 2018
    #4
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UEFI remove unwanted boot entries from BIOS solved easily

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