UEFI Secure Boot

Some modern computers use new advanced UEFI Secure Boot approach instead of the standard BIOS boot. In case if your machine does not boot after you set up boot priority as it is described above, you should check whether BIOS boot is enabled (Legacy mode), or UEFI mode.

Here is how you can check your BIOS settings:
  1. At the moment of turning on your computer, you will see an option to enter SETUP. Depending on the manufacturer of your system, you can press the Delete key, the F2 key or another key/combo that is listed here to access the system BIOS. If you are not sure, consult the User Guide that came with your computer or call the manufacturer's technical support for assistance
  2. Once in your system BIOS, look under the Boot menu to find an option that reads "UEFI/BIOS Boot Mode" or "UEFI Boot". In the case of "UEFI/BIOS Boot Mode" switch the mode from "UEFI" to "Legacy" mode, or backward
Active@ Boot Disk is able to boot both legacy BIOS or UEFI Secure Boot systems. However, if for some reason, UEFI mode does not boot the machine (computer hangs up, crashes etc.), try legacy BIOS boot mode.