Dual Boot, Cannot open Ubuntu

by Faizan   Last Updated February 20, 2018 18:02 PM

I was able to successfully install Ubuntu 16.04.3 LTS on my HPPavilion laptop with Windows10 as the main OS. After Ubuntu installation, it asked to restart. After restart I do not get Grub menu, and it starts Windows OS. I tried disable secure boot, and lots of other things.

Note: I cannot access Ubuntu, so cannot access Terminal for commands.

I found https://www.supergrubdisk.org/ should I use this? or is there any other option?

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