How to add Windows 10 to grub boot loader?

Solution 1:

  1. Boot to your Linux
  2. Open a Terminal window
  3. Type: sudo os-prober
  4. If the results identify a Windows 10 install, type sudo update-grub which will update the GRUB entries and add it
  5. Reboot your computer and test to see if Windows 10 is a new option to select.
  6. End of instruction.