How Do I Boot Ubuntu After Installing Windows 10?

Open the legacy version of the Windows Control Panel (not the modern version). Select Energy Settings, enable show hidden settings and uncheck Fast Boot. After having done this – shutdown the computer completely – do NOT reboot. Boot into the BIOS and select Ubuntu as the default operating system to boot.

How do I go back to Ubuntu after installing Windows 10?

The graphical way

1. Insert your Ubuntu CD, reboot your computer and set it to boot from CD in the BIOS and boot into a live session. You can also use a LiveUSB if you have created one in the past.
2. Install and run Boot-Repair.
3. Click “Recommended Repair”.
4. Now reboot your system. The usual GRUB boot menu should appear.

How do I boot Ubuntu after installation?

Fix no bootable device found error after installing Ubuntu

1. Turn the power off and boot into boot settings. …
2. In the boot settings, make sure that Secure Boot is turned on. …
3. Go to Security tab and look for “Select an UEFI file as trusted for executing” and click enter. …
4. You should see your hard disk like HDD0 etc here.