Environments based on Windows 8 or newer (and WinPE 4.0 or newer) support Secure Boot. You only need to disable Secure Boot if the environment you're booting into doesn't support Secure Boot, such as most Linux-based boot environments. Start the you don't need to disable Secure Boot just because you want to boot from a USB device. Un-check Save as Custom User settings and click Ok. The easiest approach to return to secure boot is by restarting the computer, pressing F2 again, and checking the Secure Boot Enable box. Click Apply.Ī confirmation screen appears, saying do I want to save it as a custom setting? I said no. Un-check Secure Boot Enable by clicking on it again, A warning screen appears, saying disabling secure boot will reduce system security. If Secure Boot disable is seen, select it. click the red "+" button next to Secure boot. ![]() If windows starts, turn it off and try again. Within a few seconds of turning it on, continually press F2 (not press and hold), until something happens. Turn computer off, than turn it on again. F2 allows me to change the boot order, but is that a good choice? I don't want to end up with an inoperative computer.ĭisabling secure boot - my approach using Inspiron 36. I used F12 in the past, but it is now a UEFI window and that choice is missing. ![]() ![]() However, I cannot figure out how to boot from an external drive. If I press F12 at startup, secure boot status is off. After reading countless suggestions, I finally turned secure boot off.
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