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I'm running Ubuntu and Windows 10 as a dual boot. When I select "Windows 10" from GRUB menu, it gets stuck at purple boot screen with diagonal broken lines, and won't boot further,reference. I worked without these problems since from many days, but I got this problem recently

enter image description here

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  • Your Windows is not booting because your Windows has a problem. Your Windows problem is unrelated to the other OSes. You need to fix your Windows but that is off topic here.
    – user692175
    Jan 9, 2018 at 10:06
  • Can you boot Ubuntu successfully? If yes, could you please run sudo update-grub and try to boot Windows again? If that still doesn't work, could you please run Boot-Info and edit your question to include a link to its resulting info log? Thanks. Jan 9, 2018 at 10:07
  • @David Foerster To run Boot-Info, again should I need to reinstall Ubuntu iso Jan 9, 2018 at 16:08
  • I don't understand. You can install and run Boot-Info from your current Ubuntu installation or a live system as described in the article linked in my previous comment. Jan 9, 2018 at 20:26

3 Answers 3

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I got this problem while booting the system in safe mode and finally got the solution for my own problem.

Boot into Ubuntu, there follow the steps which are described in this video and which are also listed below.

  1. Open the terminal and run this command: sudo fdisk -l

  2. If a Windows partition exists, then update grub with this command: sudo update-grub

  3. Restart your system with this command sudo reboot Then after loading you will be asked to select a boot option.

    Warning: This might not work on your PC. I have UEFI System for Windows 10. I installed Ubuntu in UEFI mode too.

  4. After rebooting, select Windows 10 from grub menu, it may boot into safe mode. Then go to System Configuration -> Boot tab -> uncheck Safe boot -> Click Apply and then OK. Restart the system again.

https://i.stack.imgur.com/ydCsV.png

Change the option in System Configuration to:

enter image description here

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You have just to press Enter key, I have got this problem too, which was solved just by pressing Enter or Space key.

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Pressing the Enter key worked, but the problem persisted for me.

Repairing startup surprisingly fixed the issue for once. Hold down the Shift key when restarting -> Troubleshooting -> repair startup

Alternative fix, boot into advanced recovery mode, tap F8 or boot from recovery media. -> Troubleshooting -> cmd. This is a last resort, you may want to check for any corruption first. And try less risky fixes like sfc and dism commands. Check out Windows Central's breakdown of each tool for more details on how to run those repairs in Advanced recovery mode.

bootrec /FixMbr 
bootrec /FixBoot 
bootrec /ScanOs 
bootrec /RebuildBcd 

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