I installed Ubuntu (not my first time); however, it does not boot up with my Windows 10 hard drive connected. I enter BIOS, select my hard drive with Ubuntu, but the computer boots into Windows 10. The only time Ubuntu boots is when I physically remove the Windows 10 hard drive.


It seems that your UBUNTU HDD connected as slave. And Windows HDD - as master(You can check it out in BIOS). Try to switch them

  • I entered my bios but I could not find the option to switch from slave to master. Aug 29 '18 at 1:52
  • Slave and Master is controlled by either the location on the IDE cable or via jumper on the disk drive. Aug 29 '18 at 2:22

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