The Unified Extensible Firmware Interface BIOS (UEFI) is a specification that defines a software interface between an operating system and platform firmware. UEFI is a replacement for the older BIOS firmware interface present in all IBM PC-compatible personal computers

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Is it safe to purge EFI from a laptop?

My laptop is a Dell Latitude E5430 that supports both EFI and "legacy" boot modes. I'd like to removed win8 and it's troublesome EFI stuff and replace it with a Win7. I'd like to keep my ubuntu ...
9
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4answers
11k views

How can I use TrueCrypt under windows 8.1?

I know that TrueCrypt doesn't support windows 8 because some systems have UEFI enabled. It seems that if UEFI is disabled or Windows 8 is installed on an non UEFI system TrueCrypt just works fine in ...
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1answer
2k views

grub-efi refuses to chainload Windows 8.1

I have installed LMDE (with grub in MBR) after I installed Windows 8.1. I then installed the grub-efi package and added the custom Windows options: #!/bin/sh exec tail -n +3 $0 menuentry "Windows" { ...
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1answer
541 views

Windows 7 boot manager not localized on UEFI system

I'm running an Italian version of Windows 7, which includes a localized boot manager. However, I recently replaced my motherboard with a new one based on UEFI firmware instead of BIOS (Asus Z87 ...
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1answer
377 views

Does UEFI prevent dual-booting/Ubuntu not to recognize Windows 7?

Installed Windows 7 on a laptop with UEFI. Then went to install Ubuntu on another partition- Ubuntu cannot see the Windows 7. I have done this many times before and it works fine. Would this be ...
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1answer
2k views

Move EFI System Partition to another drive

I had a Windows 8 installation on an HDD, using UEFI as boot. The HDD has the following GPT table: DISKPART> list partition Partizione ### Tipo Dim. Offset --------------- ...
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1answer
6k views

Enabling UEFI mode in BIOS after having set it to CSM mode, and not being able to get back into BIOS

I set my BIOS to CSM only mode after being unable to boot into windows after upgrading it to 8.1 and not being able to boot from a USB stick to repair it. I ended up putting in a formatted SSD, and ...
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1answer
3k views

UEFI USB only boots when formatted FAT32

I am trying to create UEFI bootable USB sticks of Windows 8. What I do is the following: diskpart select disk 1 clean convert gpt create partition primary format quick fs=ntfs I then just dump the ...
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1answer
375 views

Linux Live CD only works when Windows is in Legacy mode?

I have asked a similar question before and no one was able to help me but I think it was because I wasn't phrasing it properly. This is a better restatement of the question. I have Windows 8 and Linux ...
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1answer
2k views

Windows boot manager and two hard disks

here's my situation: I had an HDD with Windows 8 installed (UEFI mode). I bought a SSD and wanted to do a clean install of Windows, so I thought that disabling the HDD and leaving the SSD as the only ...
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1answer
1k views

Ubuntu Update causes “Operating System Not Found” on UEFI system

I have an Ubuntu Edge E320, and when I got it, I remember hours of hugs frustration because it was very difficult to get an OS onto it. Eventually, I made to install Ubuntu 12.10. I updated to 13.04 ...
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1answer
49 views

Putting an SSD with Win 7 in a new Win 8 laptop [duplicate]

I have an older laptop (a TP E420) with a 64GB SSD running Win 7 Home Premium. Say I buy a new Windows 8 laptop that doesn't have an SSD. Can I just take the HDD out and swap my extant SSD in, and ...
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0answers
296 views

Moving a system partition to new Hardware with Win8/UEFI, without screwing up BCD

My existing Win 8 install is historically installed on a MBR dynamic disk (that's so I can soft mirror the data partition which is on the same disk). I just bought a new motherboard/new HDD, and I ...
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0answers
219 views

Win 8: Adding a boot volume to an MBR dynamic disk [NOT about changing to basic disks]

(This is NOT aiming to convert to basic disk. In this question, the disk stays dynamic but becomes bootable) There doesn't seem to be a clear, well stated answer I can find, for the question "What ...
0
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1answer
426 views

Boot Windows 7 with UEFI

I am trying to install Windows 7 x64 SP1 on a UEFI enabled Dell 6430 laptop (yes, I know I can set legacy options, but I specifically need a UEFI image for capture) and the installation disc stops at ...
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0answers
67 views

Installing Ubuntu inside Windows7

I have recently bought an HP Pavilion g6 laptop that comes with windows 8 running on it, but I formatted and installed windows 7 instead. Now that I want to install Ubuntu 12.04 inside windows 7 (like ...
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votes
1answer
2k views

Unable to start Windows - UEFI boot problems with Linux + Win8

I have installed openSUSE (12.2) on a PC that has Win8 installed. At the beginning there were problems and it didn't start, after some "fixes" Linux started but when going in the grub2-efi Windows 8 ...
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0answers
30 views

uefi legacy mode: timeout disappear

I have a multiboot Windows 2008 - Windows 8, which is working perfectly on legacy mode of UEFI, I would like to set a timeout on it. I did it with bcdedit but it is not working. It is only if I ...
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2answers
895 views

no OEM certificate found in windows 8

i want to clean install win 8 on my new lenovo, i have heard that OEM key is stored in the bios and is automatically applied on a clean install. so i decided to save the OEM CERTIFICATE using a ...
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1answer
204 views

Windows 8 offers to format Linux partition [duplicate]

I installed Windows 8 and Linux dual boot on UEFI system. Windows 8 recognizes Linux (btrfs) partitions as unformatted D: and E: and offers to format them when I accidentally click on them. I'm used ...
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2answers
542 views

Removed Windows 8, installed Linux Mint 15. Error: “/EFI/Microsoft/Boot/grubx64.efi”

Yesterday, I tried to remove Windows 8 and installed Linux Mint. It was ok untill I restarted. My hardware: Dell Vostro 3560 Windows 8 Pre-Installed SSD 32 GB (mSata) The problem is that after the ...
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1answer
136 views

EFI Win 7 and 8 two HDs secure mode

How can I create a 2 hard-drive dual boot system with Windows 8 and Win 7 64bit in UEFI secure mode? I want to be able to choose which hard-drive with F12 (like with non-UEFI systems). Will I see ...
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2answers
941 views

Fedora installed in Legacy mode, how to make it work in UEFI?

I am trying to install a linux distribution on my new laptop. It's an MSI GE40 which comes preinstalled with windows 8. It's a UEFI machine. I have tried installing Ubuntu and Fedora with limited ...
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0answers
67 views

ASUS laptop refuses to boot to USB?

All of a sudden today, I can no longer boot from USB. I've tried installing a Crunchbang Linux ISO to a USB drive using a method (LiLi USB) that's worked for me dozens of times in the past. Now, for ...
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2answers
438 views

Can I install Linux on computers that come with windows 8? uefi vs boot locking [duplicate]

Thinking of buying a computer that comes with windows 8, but want to install Linux on it (Mint or Debian). I was wondering a few things: Do most computers with windows 8 come with UEFI now - eg, ...
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0answers
211 views

Uefi and full disk encryption with lvm on luks

I have an asus machine on which i can use old bios and new uefi. I've always used the old bios system, running a full encrypted debian with the following configuration: an unencrypted boot partition ...
0
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0answers
455 views

How do I fix dual boot startup for Ubuntu installation on Windows 8 Laptop

I have a Lenovo laptop with preinstalled windows 8 64bit- I did an installation of Ubuntu 13.04 - however after installation I was faced with the GRUB loader. From the Grub loader if I try to start up ...
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2answers
2k views

Reinstall pre-installed Windows 8 [and install Ubuntu with Win 8 later on]

I bought myself a new tiny laptop - Asus X201E. It came with windows 8 preinstalled in UEFI mode, I have no DVDs with it - any DVD with drivers nor Windows 8. Since Im not a big fan of Windows, I ...
2
votes
0answers
1k views

Dual boot Windows 7 on pre-installed Windows 8 laptop

I have a newer HP laptop with preinstalled Windows 8. I want to dual boot Windows 7 with it, but am unable to boot to the USB. To start with, I downloaded an .iso from Microsoft that I then copied ...
0
votes
1answer
79 views

Using an EFI partition to install an OS instead of bootable USB stick, is it possible?

I found myself with no spare DVDs and no USB stick when I wanted to install a new OS on my laptop, so I started thinking about the UEFI boot process that I recently had done some tinkering with. ...
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0answers
866 views

UEFI boot Issues on Asus G750 and LiveUSB

I'm having an issue getting Mint 13 LTS to boot on my new machine. I switched off SecureBoot, CSM and Fastboot. After this I Used USB Installer that comes built into Mint, it ends up with a ...
0
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1answer
64 views

Boot from non ESP

I am looking to boot an EFI file on a partition on my hard drive that is not the EFI System Partition. In other words, I have a boot partition that has a .efi file I wish to boot from, but it is on ...
0
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0answers
380 views

Asus Sabertooth Z87 motherboard — PXE booting

I bought a new desktop computer with an Asus Sabertooth Z87 motherboard. I already have a working PXE environment in my subnet, and I would like to install Ubuntu 12.04 from it (in a dual boot setup ...
0
votes
2answers
185 views

Install ubuntu with Windows 8 secure boot issue

I installed Ubuntu 13.04 on my Lenovo laptop alongside Windows 8 which was already preinstalled. I chose Install Ubuntu alongside Windows 8. It went smoothly until I got a message: Installation ...
0
votes
1answer
3k views

Can I disable UEFI in Windows 8 to boot it in legacy mode?

1 - I would like to boot my pre-installed Windows 8 in legacy mode, and not any more in UEFI mode. Is it possible ? If yes, do you know a tool/cmd to change it ? 2 - Would Microsoft be ready to give ...
0
votes
2answers
9k views

How do I install Windows 7 32-bit on a UEFI-based system?

I own Acer M5 recently and it comes with 64-bit Windows 8. I need it to run Windows 7 x86. I changed the BIOS setting to boot under Legacy BOOT instead of UEFI mode. I created my bootable USB using ...
0
votes
1answer
2k views

Fedora 19 (you have not created a bootloader stage 1 target device)

I want to install fedora 19 to my HDD but I get errors: you have not created a bootloader stage 1 target device sda6 must have one of the following disklabel types: GPT. I tried: Create 1-2 mb ...
0
votes
1answer
429 views

Windows 8 preinstall downgrade to Win 7: UEFI problems :/

I have a friend who has a HP Laptop with UEFI booting. Due to some unfortunate human error resulting in an unbootable system, I suggested and he agreed to installing Win7 ("I hate the big tile ...
0
votes
1answer
262 views

Windows 8 BIOS can't read DVD drive, want to switch to Linux

I have a laptop, Asus X401U, that came with Windows 8. I've been trying to switch to Linux via DVD, read online tips about how to get to the BIOS, and got stumped after UEFI (my reference is this ...
0
votes
1answer
2k views

Install Windows 7 Ultimate x64 as UEFI with GPT

I bought a Samsung laptop (Model: NP350V5C-S0BIN) which came preinstalled with Windows 8. I dont like Windows 8 and want to install Windows 7. I have disabled FAST BOOT and SECURE BOOT. My questions ...
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1answer
2k views

Lenovo Windows 8 EFI restore from image

First time here. I have bought e530 with windows 8 and the first hour of work with it i have a problem. I have ssd with windows 7 which i want to use with my new e530. I have made a sysprep of win 7 ...
0
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1answer
79 views

What defines the signature of a bootsector?

I've attempted to simplify the question, by getting at the gist of the problem: What exactly makes the "first sector" of a device the "bootsector?" Is the bootsector a logical sector, a physical ...
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votes
2answers
472 views

System does not boot from SSD after re-installation

I have an ASUS S56CM with UEFI firmware, x64, Windows 8. Core i3 processor 500 GB HDD (496 GB and 4 GB marked as boot) 24 GB SSD (18 GB and 4 GB marked as OEM partition) 4 GB RAM The system used ...
7
votes
3answers
1k views

Windows 7 - Cloned partition onto 2nd disk (in same machine) won't boot

Notes: using a MacBook Pro 2011, UEFI and GTP. Replaced the DVD drive in my laptop with an SSD (disk 2). Installed Win7 onto the new SSD, which worked fine. Decided to clone Win7 from disk 1 onto ...
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votes
1answer
2k views

How to make bootable Debian usb drive that works on both BIOS and UEFI systems?

I want to make bootable USB drive with Debian and make it bootable on both BIOS and UEFI systems. I've found only separate instructions for BIOS and UEFI systems. Please help me to find a solution.
8
votes
2answers
244 views

Timeout option not working on efi windows 7/windows8 dual boot machine

I hav a gigbyte GA-Z77m-D3h mobo and installed Windows 8 Pro and Windows 7 Ultimate on two SSDs (in that order) in EFI mode. Now when I start my computer, I get the windows boot menu (text mode) with ...
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vote
4answers
4k 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
586 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
1answer
228 views

UEFI DUET does not boot Ubuntu 12.04

Am trying to boot Ubuntu 12.04 using DUET. I have bootable DUET in one USB flash drive and i have bootable Ubuntu 12.04 in another USB flash drive. After getting into DUET,Through Boot Maintenance ...
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2answers
4k 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 ...