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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3
votes
0answers
31 views

Computer no longer POSTs after enabling secure boot

I just installed Windows 8.1 and I decided to take advantage of its secure boot support. I went into my BIOS (latest version), selected Windows 8 as my installed OS (the BIOS has a setting where you ...
0
votes
1answer
43 views

Secure Boot for Linux?

Is the "esp boot partition" as secure as an ext2 partition. If the secure boot feature is not enabled. My current research reveals contradictory opinions among the leading OSes, with choice being ...
1
vote
0answers
28 views

UEFI multi-factor authentication on admin password?

Many UEFI vendors offer boot and Admin passwords for a local machine. For a normal cold boot or reset, I would like the UEFI system to simply pick the properly signed bootloader and proceed. Having ...
2
votes
1answer
78 views

System does not boot DVD drive in secure boot/UEFI mode

I had to disable Secure Boot and enable Legacy Support to be able to boot a Windows 8.1 64bit DVD from the CD drive in the BIOS menu to install Windows. Is there any reason why this happens? Is there ...
1
vote
1answer
149 views

Cannot boot after migrating my Windows 8.1 installation to a new drive

I want to migrate my Thinkpad X1 Carbon (2015)'s Windows 8.1 installation to a new 240GB PCIe 2.0 4x SSD. I figured that Clonezilla may work for that but cannot boot now. Turned off SecureBoot ...
0
votes
1answer
24 views

Is there a way to tell whether my EFI bootloader would accept the signature of the binary without reboot?

Assume that I have just installed a signed EFI bootloader (e.g. grub2 from Ubuntu 14.10 amd64 on a Lenovo IdeaPad U410 which can only boot in secure boot EFI or legacy mode) on a machine from within a ...
2
votes
1answer
51 views

Stop Windows 8.1 from removing Grub

I've got a relatively new HP Envy machine running Windows 8.1 that I want to run Ubuntu on. Installation works great and I'm all happy until I boot back into Windows, at which point grub is removed ...
0
votes
2answers
100 views

Cannot boot win 8.1 without install cd

I've formatted my HP laptop and installed a new win 8.1 from dvd. But now I cannot boot from hard drive unless the install CD is presented. There's an error message displayed when booting in non ...
2
votes
0answers
85 views

If TPM owner password set in linux, how to enter owner password in windows to enable bitlocker?

I have successfully taken ownership of, and used various features of, my tpm in linux, using tpm_takeownership and related applications. Now when I try to enter the owner password in windows to ...
0
votes
1answer
92 views

How to deactivate secure boot on windows 8.1 when uefi firmware settings arent available?

I've installed Windows 8.1 in UEFI mode, screen that proves it is below After rebooting system in advanced mode going to: Troubleshoot->Advanced options I can't find UEFI Firmware settings tile ...
0
votes
1answer
3k views

ASRock UEFI Setup Utility No option to disable secure boot

I want to downgrade my computer from Windows 8.1 to Windows 7. I originally had Windows 7 on my desktop, then upgraded to Windows 8, then Microsoft basically forced me to upgrade to Windows 8.1. I was ...
1
vote
1answer
266 views

Does Windows 8.1 Secure Boot need a TPM chip?

I've seen conflicting information about the need for a TPM chip when enabling Secure Boot in the UEFI BIOS. Is a TPM (Trusted Platform Module) chip needed for Secure Boot? Thanks Edit: Thanks ...
2
votes
1answer
527 views

Monitor only works if Legacy BIOS (CSM) disabled?

I have an Asus Q550-LF computer running Windows 8.1 Enterprise. It has a MiniDisplayPort output which is connected to a MiniDP to DVI adapter. I discovered that my monitor was not working the same day ...
4
votes
2answers
1k views

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 ...
0
votes
0answers
35 views

Virtual machines on Secure Boot

I have Fedora 20 installed with Secure Boot. I've been trying to make a virtual machine using OracleVM VirtualBox and VMware Workstation, but none of them work (vmmon couldn't be started). After ...
1
vote
1answer
2k views

Questions about using Clonezilla to create and restore image on Windows 8.1 secure boot system

I'd like to use clonezilla to create a disk image of a Windows 8.1 system with secure boot enabled and some third-party software installed, so that I can at a later time restore the system from that ...
0
votes
0answers
488 views

Are there any rescue CD's which are bootable on UEFI and or UEFI with Secure Boot enabled?

I'm looking for Rescue CD's like Hiren's Boot CD which allow me to boot without switching to BIOS or turning off Secure Boot. I had no luck finding such thing. Is it even possible to launch such an ...
0
votes
1answer
242 views

Secure boot validation failure loading ext4_x64.efi

My setup: - Lenovo U510 with preinstalled Windows 8 - UEFI and Secure Boot enabled - Fedora 20 installed on a new ESP partition Having two ESPs I wasn't able to boot Windows with grub, so I ...
-1
votes
1answer
2k views

Asus HD 7750 - The VGA card is not supported by UEFI driver.

I installed windows 8 on my pc with uefi enabled. After installing it when i am turning off the CMS and enabling secure boot, i am getting this message. "The VGA card is not supported by UEFI ...
0
votes
1answer
9k views

Cannot modify BIOS setting on Asus Zenbook UX31a

I bought an Asuz Zenbbok UX31A with windows 8 a while ago. After I bought it I decided to put windows 7 on it and everything worked fine. Yesterday I updated my bios in order to fix a fan issue and it ...
0
votes
2answers
454 views

UEFI vs. ARM TrustZone

I understand UEFI has a Secure Boot feature that is now for all Win 8 (tablets, and smartphones). How does this fit in with AMR's TrustZone for example? Is UEFI like a firmware TPM that can sit as a ...
6
votes
2answers
4k views

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 ...
0
votes
2answers
60k views

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 ...
3
votes
3answers
2k views

How can I disable SecureBoot when my system won't boot?

I recently upgraded from Windows 8 to 8.1 and received a warning that SecureBoot was not properly configured. I proceeded to try correcting this by installing the default keys from the BIOS and ...
0
votes
1answer
273 views

Secure Boot, Bumblebee and Fedora - how to?

I'm a happy user of Fedora 19 and I have it installed on a Samsung Series 5 laptop, which has an off board video card from NVidia - specifically a GeForce GT 630M. I managed to successfully install ...
1
vote
4answers
9k views

Is it possible to make a EFI file to boot Yumi USB flash drive?

2 days ago I've bought an HP Envy laptop, which comes with Windows 8 pre-installed. Before that I were using Yumi USB flash drive with a dozen of boot options to set-up the computers (e.g. ...
0
votes
1answer
1k views

HP Split X2 - Clean Install of Windows 8

I would like to install a clean install of Windows 8 Enterprise on my HP Split X2 (it has the new UEFI/Secure Boot). Thus far all of my attempts have been unsuccessful... I've tried Secure Boot ...
0
votes
2answers
6k views

How can I disable Secure Boot, without entering in BIOS Setup?

I had UEFI Secure Boot enabled laptop with Windows 8 installed in, the problem is that I restored another OS(linux) and now I cannot enter in BIOS Setup. Is there a way to disable UEFI Secure Boot ...
7
votes
2answers
13k views

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 ...
0
votes
1answer
1k views

Multi-boot USB using Windows bootloader and UEFI, for WinPE 4.0 and Windows 8 installation

I have a large USB drive that I would like to use to multi-boot several Windows products. The way my project seems to differ from every other thing I have found on Google is that I want it to work ...
0
votes
2answers
5k views

Does CentOS 6.4 Support UEFI and SECURE BOOT Fully?

Does Minimal Edition of CentOS 6.4 support UEFI & SECURE BOOT fully? I want to install it besides Windows 8. Now does it install normally or does it not support UEFI & SECURE BOOT fully yet? ...
0
votes
1answer
437 views

Installing Windows 8 from DVD (or USB) - Toshiba

I would like to do a clean install of Windows 8. I do not want to use the OEM stuff or do a Windows recovery. I have burned the ISO to a USB drive and when I boot, hit f12, and select USB I get ...
0
votes
1answer
1k views

How to re-sign the Windows boot loader to re-enable secure boot on an HP laptop?

I just purchased a "HP Pavilion 15-B055ca (C7C80UA#ABL) Ultrabook" from my local computer store the other day, as well as an SSD hard drive. I removed the original 500GB HDD, installed a 120GB SSD, ...
0
votes
0answers
41 views

Upgrading Win7/Quantal(secure boot off) to Win8/Quantal dual boot

I have a Windows 7 and Ubuntu 12.10 dual boot setup on an HP g4 laptop that is Win8 ready. Secure boot is off(using legacy boot). I want to upgrade to Windows 8, keeping the Ubuntu 12.10 install ...
-1
votes
1answer
2k views

Multi-booting a secure-boot enabled Windows 8 laptop

My friend is buying a Lenovo Z500 with Windows 8 pre-installed and with that (irritating) Secure Boot feature. We use Ubuntu for some stuff at college and she wants me to help her install Ubuntu 12.10 ...
5
votes
6answers
48k views

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 ...
46
votes
1answer
8k views

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 ...
1
vote
1answer
160 views

What prevents me from writing a bootkit that uses a recognized UEFI key?

As far as I know, UEFI Secure Boot works this way (more or less): for certain operating systems to boot, they must be signed with a key that is checked by UEFI at every boot. If a bootkit replaces the ...
0
votes
4answers
6k views

Is it possible to downgrade an OEM Windows 8 install to Windows 7?

I recently purchased an ASUS K55A. Like all Windows 8 machines, it come with a UEFI feature called Secure Boot. This basically makes sure that the laptop won't load anything other than the Windows 8 ...
1
vote
0answers
888 views

Secure Boot is not compatible on my PC; will I be able to install Windows 8 on it?

Yesterday, I ran Windows 8 upgrade assistant on my PC, Only problem it gave is that Secure Boot isn't compatible with your PC Your PC's firmware doesn't support Secure Boot so you won't be able to ...
3
votes
1answer
1k views

Windows 8 Secureboot: How do you bootup from another device such as cd/dvd drive or usb flash etc.?

On PC's and laptops running an older OS, this is just a simple matter of going into the BIOS and setting the boot sequence and putting the boot cd/dvd in the drive. In many cases you can even just hit ...
1
vote
3answers
1k views

Booting CDs/USB devices after installing Windows 8

I recently installed Windows 8 on one of my four primary partitions. I had two partitions for Windows 7 (boot and os), one for the Windows System Recovery Environment and the last for Ubuntu. I was ...
1
vote
1answer
2k views

Can I enable Secure Boot on a computer where Windows 8 was not preinstalled?

Despite all the hate surrounding Secure Boot, I frankly think it's a good idea, if it can be turned off by the user (which it can be on non-ARM systems). My laptop didn't have Windows 8 installed, but ...
2
votes
4answers
2k views

Windows 8 secure boot unavailable for my PC

When I ran the Windows 8 upgrade assistant, it said secure boot is not available for my PC firmware. I am using Dell XPS 17 L702 on 64-bit. Since I dual boot Linux as well, Is there a way to have the ...
7
votes
2answers
11k views

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 ...
8
votes
2answers
5k views

Is there something like a BIOS in Windows 8? [closed]

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 ...