Questions tagged [uefi]

The Unified Extensible Firmware Interface BIOS (UEFI) is a specification that defines a software interface between an operating system and platform firmware. UEFI replaces the Basic Input/Output System (BIOS) firmware interface originally present in all IBM PC-compatible personal computers

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Can any external hardware / software write something to the cmos motherboard chip?

I know there is some software or hardware advertised to be able to read and write what is on cmos chip, but do any normal consumer pieces of hardware or software interact like this with the cmos chip? ...
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Dual Boot Windows and Linux on separate physical drives

I have a UEFI-based system. I want to have a Windows–Fedora dual-boot configuration such that both systems are isolated from each other. Here is what I mean by the term isolation: Both systems should ...
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Recording UEFI BIOS on Thinkpad T14s

I have a Thinkpad T14s AMD one. I am trying to record its UEFI BIOS and everything while it,s booting. I know that it can be done using an HDMI capture device. I have one too, but when I can't ...
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How to identify my cloned C drive in Dell boot options?

I have a Dell Precision Tower 3620 running Windows 10 and I installed a new 512Gb internal SSD (size exactly matches my C-drive). The new drive mapped to H because I have some other external drives ...
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Move over from SAS HDD to SATA SSD with HPE SSA, Clonezilla and UEFI System Utilities

we would like to replace our Windows Server 2016 Hyper-V Hosts SAS HDD with SATA SSD, and i thought that would be an easy processs. I followed that draft: Created drive with Offline Smart Storage ...
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Actual file and/or partition requirements to distinguish an image is potentially bootable as legacy or UEFI?

I did a thorough search before and I did have knowledge of the subject years ago when UEFI was not yet a thing. But seems when you don't use something, sometimes you "unlearn" it. Seems ...
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Changed UEFI from Legacy to UEFI Boot and now I can't boot Windows

I've changed UEFI from Legacy to UEFI Boot using MBR2GPT, setting the boot option to the hard drive, but after mbr2gpt finished, I received an error about an XML file, which I ignored. Upon rebooting, ...
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Haven't been able to boot this drive in about a week. Winload.efi. “Weird” partition table?

How the error came to be I opened testdisk out of curiosity and started analyzing my system drive. It was painfully slow so I eventually killed the process, and nothing spectacular happened it ...
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Kernel file not found error?

I am was installing PrimeOS(android os) and it came with a installer after installation the system restarted and an error came while booting "error: no such device: //android/kernel", the ...
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Rufus recovery USB not seen on UEFI boot

This morning my PC gave me the error “ there is an invalid object in the boot configuration data”. It won’t even let me enter bios. So I got my trusty Rufus backup usb, started the pc and got the ...
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Trying to add Arch Linux to a UEFI hard drive with Ubuntu, Debian, and GRUB already installed

I downloaded Arch 64 bit ISO to a USB thumb drive and booted into it. The target system is a Gigabyte board with an Athlon CPU and 8GB RAM, 1 TB hard drive with UEFI. Followed the built-in "...
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How to boot from DVD when BIOS only have Windows Boot Manager as option?

I think the problem is is recently switched to UEFI when I had to reinstall windows 10. But now I cannot boot to my dvd drive? the bios only shows 1 option, Windows Boot Manager. And the only options ...
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Why Partition Content Change After installing SP1 on Windows 7?

Computer : HP Pavilion s5227c Desktop / OS: Windows 7 SSD1 : SAMSUNG 860EVO 250GB / SSD2 : SAMSUNG 860EVO 250GB HD1 : Seagate ST4000DM at 4TB, 3815320MB, Partition style: GUID ...
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New Debian installation doesn't show up in boot

I just installed Debian 11 onto a new PC that had a working preinstalled Windows 10. I shrank the NTFS partition and installed Debian on a new partition on the free space. Everything is configured as ...
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Ho do I make a cloned gpt hard drive bootable under UEFI motherboad

I got an old desktop pc running windows 7 using the killer 990fx motherboard (UEFI firmware). The hard drive where the os windows 7 is installed is a 2TB MBR drive. Since, the space on disk is ...
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Acer aspire 3 - Can't find any partitions while installing linux

I just bought Acer aspire 3 laptop and I wanted to install kali Linux on it first I set bios password and disabled secure boot, then It allowed me to boot from USB but installer can't find any disk, ...
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Install a second SSD that already has Windows 10 installed on it

I just want to make sure I won't break things. So, basically, my old laptop decided to die a couple weeks back and so I promptly replaced it with a new one. The problem is that I still have some ...
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HP Pavilion 17 Laptop Broken Screen - Can't enter BIOS

NOTE: This is not a duplicate of Cannot enter BIOS due to broken screen, because none of the solutions there solved my issue. Looking for further direction. My old HP Pavilion 17 laptop is still ...
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How to enter Thinkpad BIOS setup or ThinkShield Secure Wipe (supervisor password known, power on password known, HDD password unknown)

Thinkpad P1 Gen 3. I took these steps in the BIOS setup: Set a Power on Password Set a Supervisor Password (used the same password as the Power on Password) Set an HDD2 Password (User password, no ...
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Windows 10 UEFI boot partition recovery

I installed a M.2 drive in my Windows 10 Home x64 edition and then used Macrium Reflect to create a clone of the c: drive to the M.2 drive. I also expanded the size of my windows partition and left ...
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Why does my UEFI time jump ahead 3 hours on every boot?

Whenever I reboot my pc, the motherboard UEFI time jumps ahead exactly 3 hours. Here are my PC specs and other things. My PC is about a year old. I Dualboot: Windows 10 Pro 64 Bit Kubuntu (Linux) 20....
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Unable to change from UEFI to Legacy Mode

i have a Acer Aspire 5 A515-44 with Windows 10 Pre-installed , but I need for my Car Diagnostic Programs Windows 7. So I decided to work with a Virtual Machine installed Win 7 but the programs won't ...
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DDR3 ram not working

I have bought a 4 GB DDR3 memory RAM stick which should be compatible with my motherboard and, for the third time, I cannot make it work. The first time the memory test crashed when checking the RAM ...
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I haven't been able to access the UEFI firmware settings for months now (windows 10)

I'm using windows 10 home, my motherboard is a rog strix z490-h gaming, and my pc's bios mode is UEFI. I used to be able to access it, but it just doesn't work anymore. When i try to access it via the ...
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Adding UEFI linux image on Windows running from BIOS

i have a windows 7 system running from "dual boot type" in BIOS setting. Windows is a legacy image. I now want to add a linux OS which boots from UEFI mode. Can anybody help me out how to do ...
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Where does BIOS store boot sequence?

Every time I format and re-install a different OS, a new boot option appears in the BIOS settings. Where is this stored? Can I read or modify it from within the OS?
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Linux usb live cd not starting due to secure boot error

Greeting to you all, I'm having the following issue. I've received a notebook (acer Aspire 3 A315-23) and I'm trying to install a linux distribution on the system (namely a devuan beowulf). I created ...
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Clear EFI Boot menu (Windows 10)

I have some redundant options in Boot - EFI, which I tried to clear out via Visual BCD and Hasleo EasyUEFI, but they keep coming back. I want to keep Windows 10 and remove Linpus lite and ubuntu.
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UEFI Windows + GPT SSD won't boot without CSM enabled

My system is running Windows in UEFI mode, my NVMe SSD is in GPT mode, and everything seems to be in perfectly good order for a boot without CSM (Compatibility Support Module) enabled. However, this ...
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UEFI doesn't recognize HDD for EFI boot

I bought an SSD and have an HDD with Ubuntu and Windows 10, moving the Windows OS partition to the SSD, deleting it from the HDD; upon doing this, UEFI doesn't see the HDD, even after disabling CSM ...
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Understanding UEFI [closed]

When searching the internet for UEFI, I found two types of articles: one type "explains" to me that UEFI is the modern alternative to MBR booting, that it's widely supported by now and that ...
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Boot Windows 10 on a machine without UEFI after images were created from MBR and restored on GPT partition table in Linux

A 500 GB HDD that started giving signs of obsolescence had multiple partitions, including Linux Mint and Windows 10. This is on a BIOS laptop (non-UEFI). That HDD had MBR partition table. Because of ...
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1answer
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Dual boot - Screen glitch - Vertical lines

I have an HP ENVY Laptop 15-ep0142tx, it is currently running Windows 10 Home (Version: 20H2 and Build: 19042.804). I wanted to install Ubuntu 20.04 by dual booting, but after booting into the ...
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windows no EFI partition

I installed windows 10 using USB in UEFI mode USB (MBR) installation target (GPT) the USB installation media (created on Ubuntu) dual boots Ubuntu and Windows 10 using grub. menuentry "Windows 10&...
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HP ProBook doesn't boot into GRUB directly

This computer is a ProBook 6470b, which is using UEFI (With CSM) mode. When I start the computer, it will show a black screen saying "Operating System not found" more or less. This is like ...
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Could not set BootOrder: No space left on device

When I boot my HP computer, these messages appear: System BootOrder not found. Initializing defaults … Could not create variable: … Out of resources After 2 failed attempts (Out of resources), Grub ...
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Can’t change boot order on WD Sentinel NAS device

I got my hands on an old WD Sentinel DX4000, put in 4 HDDs and installed Ubuntu server on it I also created a RAID 5 using mdraid All is working really well, however I’m dealing with an annoying issue:...
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GPT disk not recognized by firmware

My motherboard is BIOSTAR H81MHv3, its BIOS/UEFI/Firmware/Whatever is Aptio Setup Utility Version 2.15.1231 Copyright (C) 2012 American Megatrends, Inc. I have four disks, all Seagate Hard Disk Drives:...
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UEFI Shell hardcoded paths

How Do I link paths to hardware instead of using fsX: inside UEFI Shell? Context: I am installing a new SSD on an older machine as the system disk. I am pretty much done. My solution involves loading ...
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Extra efi partition created in dual boot linux install

I made a partition on my hdd and used it for dual boot endeavorOS on Windows10. I created a EFI partition during the install, but it seems it is not being used. Below is my disk info. The efi parition ...
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Change Windows installation to UEFI

I bought a HP 240 G6 laptop with a 32Gb drive. Opened it up to install a 240Gb SSD and the first surprise: there was no drive in the laptop; the drive bay where I installed the 240Gb SSD was empty. ...
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Starting memtest86 from USB/boot

I need to run memtest86 because my ram is going bad and I want to pinpoint which one it is. I don't know how to change from legacy to UEFI, (which is apparently necessary and I've no idea of the ...
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Fix windows 10 drive

Basically I have an image of my windows 10 installations c drive, plus images of all the other microsoft restricted partitions etc, I would like to know where to put them on a fresh disk to get it to ...
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ASUS Zenbook - Bootloader doesn't recognize Windows 10

I've scoured the internet trying to find a solution to this. I've a ASUS Zenbook UX430UAR. I am not able to access the BIOS. I believe it's because I had fast-boot enabled when Windows 10 was on this. ...
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1answer
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MSI Laptop wont recognize any other OS installation

My MSI GF63 thin just wont recognizes any other installation Ubuntu/Solus/Arch as there BOOT path wont be in bios, is there any chance of bios being hardcoded to ignore any other OSs other than ...
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Phoenix SecureCore Tiano UEFI GOP Driver Add

I have a Lenovo V570c notebook and I want to add UEFI GOP driver to it but I don't know how to add it with UEFITool. I would be glad if you could help. My Specs: Intel Core i5 2450M 2.50GHz PGA988 CPU ...
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Multiple OS on same physical disk without dual boot loader

My HP ZBook 15 G3 allows boot options when I press the F9 button. It lists my disks which are able to boot an OS. But one thing in particular caught my attention which is Boot from file. I can't find ...
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HDD doesn't boot despite being recognized on bios (uefi)

The only thing I did was disconnect physically the HDD(with the pc off of course) to check some info like the rpm, vendor, etc, but then I forgot to reconnect it and when I turned on my pc it only ...
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How to create an unattended Windows installation medium/iso/usb supporting Secure Boot and resulting in a UEFI-Windows installation?

Creating a medium from which a system can boot while Secure Boot remains active, is possible with the default Windows iso from Media Creator, but what about edited images? Creating a unattended ...
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Boot to two different systems (including hardware) from a single drive

I've been using a SSD with Windows 10 which boots in UEFI/GPT mode on my laptop. For a while I decided to switch to my desktop PC which has no SSD of it's own. In order to improve responsiveness of ...

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