Windows 10 Wont Boot, How To Fix Master Boot Record



A few weeks ago I showed you how to fix a UEFI boot loader. Today we are going to fix an MBR boot loader. a master boot record partition as it turns out is a lot harder to fix then a GPT partition. But harder doesn’t mean its impossible. I’ll show you how to do it in this video.

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Commands From Video
– recreate boot files
bcdboot {path to windows folder} /S {boot drive}

– rebuild mbr
bootrec /scanos (This might fail) *del bcd if it does
bootrec /fixmbr
bootrec /fixboot
bootrec /rebuildbcd

– Set OS partition active
diskpart
list disk
sel disk {os disk}
list vol
sel vol {OS volume}
active
exit

#Windows #Broken #Tech

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This Post Has 26 Comments

  1. Mark Dawson

    Fantastic explanation as always.
    Just a thought in your "UEFI boot repair vid" you created a generic BCD is it possible to use the bootrec /rebuildbcd switch to create a non generic BCD ?
    Thanks

  2. Iván Rodríguez

    Who is using MBR on 2023? MBR is obsolete. With MBR you can only handle 2 terabytes partitions. I think is better convert MBR to GPT (without data loss)
    GPT supersedes MBR in almost every way. Size limits and the number of partitions you’re allowed on a single drive are only limited by the operating system. And, probably the biggest advantage over MBR in terms of recovery, it stores multiple copies of the partitioning and boot data across the disk for redundancy.

    MBR was introduced in 1983 with MS-DOS 2.0, let it die…

  3. ReeWicks

    dont suppose there is a chance we could have a copy of your ventoy usb, so we can download as an image, or even an upto date video on how to make. ? ive seen the old video but had no luck getting my ventoy usb to work properly. ?

  4. justin

    Using EasyBCD and VisualBcd programs, booting from another hard drive.

  5. After you broken the MBR, the option "Continue to Windows 10" has disappeared from the Recovery menu leaving only Troubleshoot and Turn Off. And it returned once you fixed it 😅 so simply to find out, it won't boot again (once you broken it)

  6. Eddie Legs

    Suks that Microsoft fuckup fix mbr.
    Remains a shitty company but we already knew that, they have done more like destroy drivers in the past.
    Even with their own hardware products like the Microsoft sidewinder the original with force feedback on win95, shitty company.

  7. CareyHolzman

    I bet I could restore a system image backup in less time and far less complexity. No need for Ventoy, no need for storing an ever growing library of old system OSes… But hey, only use a backup of your OS installer, not your OS. Never make backups of your actual system that could make life easier. No one ever does.

  8. mariothestig

    Thank you so much! This helped me a lot. I was always wondering why every time I tried to execute "bootrec /fixboot" it gave me the "Access denied" message when repairing customers' computers. I had to use different third party software to do it, just because almost every guide out there is outdated.

  9. Thx for teaching an old dog a new trick. Usually when the /bootfix fails on me, I assume it's because the OS is just beyond repair. Now that I know it's because of 1703, that's a game changer for me! We can collab ANY time you want, brother! 👍💪

  10. bootsect command can easily fix the bootrec error without using that version of the ISO
    did you try it out?

  11. xMouseHunteR77x

    I had some data not showing up some drivers that I had data on it's weird like it wanted me reformat any suggestions what I'm missing ?

  12. Kijanah Kenya

    Help me to fix this please, am trying to activate my windows 11 pro. This what it's saying.."We can't activate windows on this device as we can't connect to your organization activation server. make sure you are connected to you're organization's network and try again."

  13. crazy4dariver

    God bless you brother even after all my begging. I will try this today.

  14. StriderRyu7

    As the tech of the company, it’s always cool to keep up with the latest tactics to deal with surprising issues like this….(that rear their ugly heads when you least expect or want them)

    Thanks for this!

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