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I installed Ubuntu 18.04 along with Windows 8.1 and after 3 to 4 times, it worked properly. But after it starts, it directly boots to the Windows boot manager then Windows.

It does not show the bootloader to choose any other OS!

Any help please?

Martin Thornton
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Aman Jain
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  • Did you change the boot order to boot GRUB first? – x13 May 20 '18 at 06:42
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    Possible duplicate of [Is it possible to boot Ubuntu using the Windows bootloader?](https://askubuntu.com/questions/62440/is-it-possible-to-boot-ubuntu-using-the-windows-bootloader) – karel May 20 '18 at 06:49
  • Can you still manually boot from UEFI boot menu? Windows 8 & 10 resets itself to first in boot order on updates. Grub also resets itself to first in boot order if you reinstall grub. Can you also reset boot order in your UEFI boot menu - boot tab? Post the link to the Create BootInfo summary report. Is part of Boot-Repair: https://help.ubuntu.com/community/Boot-Info – oldfred May 20 '18 at 17:45

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restart your computer, and before it switches to Windows, press the button that opens the BIOS options, then go to the boot tab and set Ubuntu to be on the top of the boot list, then save and exit..
Once Ubuntu starts, install the grub using : 

sudo add-apt-repository ppa:eugenesan/ppa
sudo apt-get update
sudo apt-get install grub2 -y
sudo update-grub2

This should solve your problem, as it solved mine.

singrium
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