Windows 10 Repair Mode. Windows 10 includes a recovery mode that enables users to access a range of diagnostic and repair utilities outside the os. Booting off an install disk.
That recovery mode is more widely known as the advanced startup options menu. Interrupt the normal boot process of windows 10 three times in a row. Click on update security.
Use shift restart on the windows 10 sign in screen.
Booting off an install disk. Use a windows 10 installation. Booting off an install disk. Click start button power hold the shift key and click on restart.