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

learn more… | top users | synonyms

0
votes
1answer
3k 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" { ...
0
votes
1answer
589 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 ...
0
votes
1answer
526 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 ...
1
vote
1answer
3k 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 --------------- ...
1
vote
1answer
8k 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 ...
1
vote
1answer
5k 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 ...
0
votes
1answer
433 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 ...
1
vote
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 ...
0
votes
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 ...
-1
votes
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 ...
0
votes
0answers
331 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 ...
0
votes
0answers
231 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
votes
1answer
490 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 ...
0
votes
0answers
70 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 ...
-1
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 ...
0
votes
2answers
962 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 ...
1
vote
1answer
258 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 ...
-2
votes
2answers
570 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 ...
-1
votes
1answer
142 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 ...
1
vote
2answers
1k 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 ...
0
votes
2answers
499 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, ...
2
votes
0answers
244 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
votes
0answers
477 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 ...
1
vote
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
81 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. ...
0
votes
0answers
957 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
votes
1answer
69 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
votes
2answers
190 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
11k 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
3k 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
489 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
280 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 ...
1
vote
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
votes
1answer
81 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 ...
-1
votes
2answers
499 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 ...
4
votes
1answer
3k 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
276 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 ...
1
vote
4answers
5k 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
654 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
237 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 ...
0
votes
2answers
5k 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 ...
-1
votes
1answer
532 views

How do I boot a MBR [FAT(32)/NTFS] USB HDD from EFI without legacy bios?

I am using my external HDD for backups, but for restore you need to boot into the specific software's "restore mode/utility" which is often an CD image, but I preffer to not use CD's and just use USB ...
2
votes
1answer
1k views

Unable to load Windows after using EasyBCD to Reset bcd [duplicate]

My windows installation was working perfectly fine until i clicked "Reset BCD" in EasyBCD in Windows 8. After clicking that EasyBCD told me to add Win 8 entry via Add Entry Menu so i did. After ...
0
votes
0answers
436 views

I cannot reinstall Windows 8

I recently bought a laptop with Windows 8 preinstalled on it. The laptop is an Acer Aspire V7-482PG-6662, just in case you need to know. I wanted to replace the hard drive with an ssd, so I attempted ...
-1
votes
1answer
1k views

How to know if windows is installed in EFI mode or not? [duplicate]

I've just got new laptop with Intel Atom N2800 on the board (wiki says that it is 64 bit) from shop with preinstalled Windows 7 starter 32 bit, and I want to install ubuntu 12.04 32 bit (exactly 32 ...
1
vote
2answers
1k views

is it possible to use wubi on windows 8 by enabling legacy support on BIOS?

I have been struggling to install ubuntu 13.04 on windows 8. because of UEFI, no existing ways (wubi, etc.) does not work and installing grub2 on the boot is a real pain. I see on the BIOS menu that ...