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How to Fix Operating System Not Found in Windows (No Bootable Device)

Here’s how to fix the issue of no bootable device or operating system not found in Windows 10.
✅ For updated instructions, you can read the text version of this tutorial on our website:


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In this tutorial, I will be demonstrating a number of ways to fix the problem of no operating system found in Windows, be it Windows 10, 8, or 7. Depending on the make and model of your laptop, this error message could be a bit different for you, for most laptops it would say “No operating system found”, for some it would say “No bootable device found” or “No Boot device found”. To avoid any further complications to your computer, I will advise that you follow these suggestions in the order in which they are presented.

1. Check out for is a loose connection between your hard drive and the motherboard.
2. Check your boot priority order.
3. Change from UEFI to legacy or CSM boot mode from the BIOS or vice versa.
4. Reassign primary boot device (Needs a bootable windows USB).

For instructions on how to make a bootable Windows 10 USB, check out:


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Mua Bán Nhà Đất Đà lạt 12 – bất động sản đà lạt – nhadatdalat.com

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    💡 For more tips on how to fix other related Windows 10 startup problems, check out: https://www.youtube.com/watch?v=kjOVFIEAxSQ&list=PLgInsBr6KCT1vBNRkx3CsDDdxZwQ_ACLH

  2. i tried the 4th step and it works! thank you!

  3. Please can someone help, in my case even after doing everything and shutting down the pc it is saying no operating device found

  4. Very helpful..I was very upset as was facing the same issue..it is resolved now…thank u so much …you have explained it very well..👏

  5. Thank you so much bro❤️❤️❤️❤️

  6. Number 3 works! Tq

  7. THANK YOU ❤️

  8. Thanks man

  9. After following your Videos instruction i did not get any solution , one new problem has been occured MGRBoot not available error is coming

  10. Thank you sir, GodBless you

  11. Thank ypu so mutchhhhh

  12. when i typed select volume 1 it say volume 1 is the selected volume after that i typed active and hit enter it say there is no partition selected (what is this solution???

  13. When I use the bootable USB it does stick in setup starting and no mouse cursor also

  14. Hi, when I try to enter the command active, it says "The selected disk is not a fixed MBR disk." I have chosen correct volume. Could you help me out?

  15. Are you able to use a hriens boot disk to repair it

  16. My hard disk was loose and it works now. Thank you soooo much for this

  17. Thank you so much homie
    I kiss on your eyes😘

  18. @Easy Thechs what should i do if in the list volume just showed up my usb drive? There is no ahowed up my ssd, wht happen?

  19. How i solve it without a flash drive 🙁


  21. idid it all and still not working.
    pls some one help

  22. Really really thank you!!!!

  23. When I disable and enable the hard Disk it work thanks you

  24. When I saw second one I clicked on one of the Boot priority and it started thank you

  25. I get this issue on my desktop PC and I actually tried almost all of these solutions before finding this video. The strange thing is if I go into BIOS and then press escape without making any changes it loads Windows 10 fine. However this is annoying so not really a proper solution just a workaround. Any ideas?

  26. list volume only shows my USB, other shows "no media"

  27. Thank u so much…u helped me alot by this video….

  28. Thank you ! Worked for me !

  29. For the second method I go to where the boot priority order is and there is nothing Please help ASAP!!!

  30. Thank you so much man! Third option worked. I had a power failure and when power came back, my pc said it couldn't find any bootable device. I tried your ways and it worked! Thanks for saving the day

  31. hey i m getting this error sometimes but along with this ..when my system boots ..it is 100% disk usage..so much lagging i m.facing… what can be the cause?

  32. 2:30 how do I do that?

  33. Excellent helpful content

  34. You saved my day 🙂 thanks. Hard disk was loose. I will never able to find this as I have dual hard disk in my laptop.

  35. Thanks man… really helped out

  36. Thank you a lot bro ! You are a Hero !

  37. Thanks bro

  38. Thanks a lot. It was really helpful

  39. Thanks mate..cool 😊👍👍👌

  40. Thank u so much buddy. Video works. You made my day

  41. I just want say thank you for sharing with us this video,it solved my laptop problem. It was loose hardware. Love South Africa

  42. Thanks mate 🙂 It helped me sorting out my issue

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