How to set windows 10 to boot first instead of Ubuntu?

Question

guys please help me to boot windows 10 first instead of Ubuntu. I tried using boot repair but it didn't work. The URL generated by boot repair is mentioned below http://paste.ubuntu.com/23120944

Solution

IF GRUB menu doesn't already show on boot, hold down the LEFT SHIFT key from cold boot and the GRUB menu should appear. You can select which OS to boot from there. (normal GRUB selection process).

If you'd like to make Windows the default OS, you need to first start Ubuntu and on its terminal, you can type:

sudo -H gedit /etc/default/grub

You'll see some of GRUB's settings near the top of the file. Just change the line GRUB_DEFAULT=0. This selects which item in the GRUB menu is the default boot OS.

Change the 0 to a 1 or 2 or 3... (0 equals first, 1 equals second and so on). Do a GRUB update by typing:

sudo update-grub

Now restart and the selected OS will show as highlighted and then start automatically.