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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

  • 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 '18 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. – David Foerster Jan 9 '18 at 10:07
  • @David Foerster To run Boot-Info, again should I need to reinstall Ubuntu iso – Gangadhar S Jan 9 '18 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. – David Foerster Jan 9 '18 at 20:26
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I got this problem while booting the system in safe mode and finally got the solution.

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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