How To Repair Master Boot Record In Windows 7/8/10 – Without CD

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Error: The boot selection failed because a required device is inaccessible.

IMPORTANT: If bootrec/fixboot comes back with “Access Denied”, try typing in bootsect/nt60 sys then type the bootrec /fixboot

This tutorial will show you how to fix, reset and repair the master boot record in Windows 7, Windows 8 and Windows 10. If you have boot errors and are having issues booting into Windows, there is a good chance the problem is stemming from the MBR. As I state in the video, as long as you can make it into Safe Mode with Command Prompt functionality, you can follow along with this tutorial.

You might receive the following error alert:

Windows Boot Manager
Windows failed to start. A recent hardware of software change might be the cause.
Status: 0xc000000e
Info: The boot selection failed because a required device is inaccessible.

This tutorial will apply for computers, laptops, desktops,and tablets running the Windows 10, Windows 8/8.1, Windows 7 operating systems.Works for all major computer manufactures (Dell, HP, Acer, Asus, Toshiba, Lenovo, Samsung).

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24 COMMENTS

  1. Did I help you? Consider a one time contribution to support new daily content on this channel. https://www.paypal.me/MDTechVideos

  2. When I put in “Bootrec /fixboot” I get “Access is denied” but it never asked for admin verification. I broke my computer after attempting to update to windows 10 from 7. If anyone can help me I will owe you one solid. Also I just really miss playing Skyrim

  3. Thanks bro a lot it worked without losing any data 😂😂🙏🙏😢😢😄😄😄😄😄😄😄😄

  4. My main hard drive died, I disconnected it and connected a different one as the main drive, I did a clean, format, and clean install of windows 7 on my drive. I partitioned it into three partitions since this drive is a terrabyte large. Then I tried to update with windows 10, and it gave me an error saying my windows/system32/ntoskrnl.exe is either missing or corrupt and would not let me exit with the options of f8 or to try again…I know it probably has something to do with the master boot, but it does boot up fine to windows and I checked the bios since I did that first before installing the windows 7 OS, and that looks fine in the bios so it is not that…some suggested it was the keyboard, but I tried that, still wouldn't boot up Windows 10, still gave me the same error. Would doing this in the boot fix that or do I need to do something else to get it to boot up the windows installation disk?

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