How to disable secure boot windows 10 in bios
How to disable secure boot windows 10 in bios windows 8#
Ask on a Dell forum or check your documentation to learn what key to press, and try it several times, hitting it repeatedly as the computer starts up.With newer Windows 8 PCs that are designed with UEFI support, the BIOS or firmware often has an option that specifies if the computer can boot into regular operating systems and recovery tools, or if it can boot exclusively into newer UEFI operating systems and environments. Another likely possibility is that you're trying the wrong key or that you're hitting it outside of the (often very narrow) window in which it will work. (Although it could be that Dell linked Secure Boot to making it harder to enter the firmware, this type of linkage is not required of Secure Boot, and I've never encountered it myself.) It's more likely that it's the firmware's "fast start" feature leaving the USB ports uninitialized that's at the root of the problem. Thus, you might need to use Boot Repair, efibootmgr, or some other tool to re-install GRUB or re-create its NVRAM entry once you're done.īTW, chances are it's not Secure Boot per se that's preventing you from entering your firmware setup utility. The trouble with this method is that restoring the system to its original state might not render it bootable again, since many EFIs delete their NVRAM-based references to boot options that become invalid. Alternatively, you could delete your EFI System Partition (ESP) or delete or move all the boot loader files on it so that the firmware can't find them. The best way to take advantage of this is usually to unplug all your hard disks (and your network cables, if your network supports network booting).