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Questions tagged [secure-boot]

For questions on “Secure Boot” and “Restricted Boot” the new bios feature that is in computers with the “Windows 8” logo.

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If I buy a computer with Windows 8 and Secure Boot, will I still be able to install Linux?

I've heard a lot about how Microsoft is implementing UEFI Secure Boot in Windows 8. Apparently it prevents "unauthorized" bootloaders from running on the computer, to prevent malware. There's a campaign by the Free Software Foundation against secure…
nhinkle
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How to disable Secure Boot on an Acer Aspire 3 laptop?

I have a new laptop: Acer Aspire 3, model A315-51-318M. I can enter BIOS by pressing F2 at laptop startup. On the Boot tab there is the Secure Boot enabled and I need to disable it. The problem is the item is grayed out and also on Security tab…
Vlastimil Burián
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"update-secureboot-policy --enroll-key" running on every new startup eating resources

update-secureboot-policy --enroll-key seems to run whenever I start my computer and never stops running unless I manually kill the process. It makes my computer hot and uses lots of system resources. If I manually kill it the computer cools down and…
Zachary Schwatz
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How do I allow cross-signed kernel drivers in Windows 10 version 1607 with secure boot enabled?

Windows 10 Version 1607 (aka Anniversary Update) is now enforcing the tightened kernel driver certification which was already announced 2015 as a requirement for Windows 10. The new rule is that all Windows 10 drivers must be digitally signed by…
gollum
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How would I reinstall the grub-efi bootloader on Fedora Linux?

I recently installed Fedora 18 using EFI boot. Like the other current linux distributions, it sets up GRUB2 for me. I have experience with re-installing the BIOS version of GRUB when things go wrong. I know e.g. how to boot a rescue disc, chroot…
sourcejedi
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How do I install Windows 10 from USB to a UEFI Secure Boot Machine

With a new bare Machine how do I install Windows 10 from a USB stick and install it with secure boot and EFI turned on?
Brian Lewis
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Adding X.509 certificate to UEFI secure boot database?

I have recently installed Fedora 20 on a custom desktop PC with a ASUS Z87-K motherboard. Given some commonly known bugs, I have installed the NVIDIA proprietary driver for my GeForce 630, and disabled the nouveau driver. After completing correctly…
zml
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What is "Secure Boot" in Windows?

This morning I was trying to upgrade Windows 7 to Windows 8 and ran into a problem: Your firmware doesn't support Secure Boot. What is Secure Boot, and what can I do in this situation if my firmware doesn't support it?
Anvesh Vejandla
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I can’t access the BIOS setup using F2 key on Samsung NP270E5V laptop

My Samsung NP270E5V laptop came with Ubuntu 13.04 installed on it, but I cant boot from a CD/DVD or USB flash drive to install Windows 7. Pressing F2 during boot doesn’t take me to BIOS menu so that I change the boot order; it just boots into…
ukuam
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Is there something like a BIOS in Windows 8?

Is there something like a BIOS in Windows 8? How can I set up the boot device priority? My problem occurs when switching on my computer. It immediately goes to Windows 8 loading screen without showing any BIOS messages; what's happening there?
Piotr Krysiak
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Windows 8 to 8.1 Pro Upgrade SecureBoot Error

I upgraded from Windows 8 to Windows 8.1. I have an Alienware Aurora R4 with the latest BIOS firmware version, A09. Ever since I did the upgrade, I get a watermark on my desktop saying, "SecureBoot isn't configured correctly"...I would like to get…
Alexandru
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What happens if you delete all secure boot variables?

I am attempting to install Kali Linux alongside a preinstalled Windows 10. Secure boot restricts me from booting from USB, so what happens if I delete its variables?
potatoman
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How to CLEAN INSTALL Windows 7 Professional 64Bit on Dell Inspiron 15R Turbo / Special Edition laptop?

I recently bought a Dell Inspiron 15R Turbo/Special Edition with following configuration: 3rd Generation Intel® Core™ i5-3210M processor, Windows 8 Single Language, English (64bit), 8GB 2 DIMM (4GB x2) DDR3 1600Mhz, 1.0TB 5400RPM SATA Hard…
Shiva
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Kernel lockdown disallows loading of an self-compiled and self-signed in-tree kernel module

I'm having difficulties loading a kernel module that I myself compiled and signed for Secure Boot. The module in question is ec_sys, located within drivers/acpi directory of the kernel tree. I'm using Debian 11 stable, kernel release…
mdx
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How to boot POP! OS in UEFI mode without disabling secure boot on my computer?

I installed POP! OS on my laptop a few days ago but secure boot wont let me boot it. I cant disable secure boot or UEFI mode because after installing a bios update my BIOS setup menu wont open anymore. Its a bug and many similar models have it. My…
nehalchoy
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