Questions tagged [mbr]

Master Boot Record (MBR) is a type of boot sector popularized by the IBM Personal Computer. It consists of a sequence of 512 bytes located at the first sector of a data storage device such as a hard disk.

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Does every storage device have MBR?

I have learnt that the BIOS collects the most diverse hardware data and create a complete list of all of the device’s available drives immediately after being powered on. When this process is complete,...
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Acer aspire 4752

I have acer aspire 4752 laptop.I have a win 10 bootable usb.And i tried to boot from it.It saids its mbr and windows cant install.So i converted it into gpt.After that i installed it and the ...
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Does Windows 10 Uses MBR in hybrid mode even on UEFI firmware ,Compared to Linux?

I would like to know if Windows 10 uses hybrid MBR. I know how the GPT works. Basically it has protective MBR at LBA 0 LBA 1 GPT primary header partition entries partitions secondary GPT header. ...
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Cloned SSD works perfect… When original HDD disconnected

I just resently cloned my hdd with dual boot windows 10 and Linux Ubuntu using macrium to a smaller ssd. If the HDD is disconnected, the SSD will boot like perfectly, fast, with all the programs like ...
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Boot from cloned drive with boot partition on a different drive

I recently got a larger SSD to replace the old low-capacity SSD. I cloned my C:\ drive to the new SSD from the old one. However, every time I try to boot my pc up, I get hit with the GRUB recovery ...
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How do I recover a hard disk after removing GPT partition?

I had the following problem (This disk contains mismatched GPT and MBR partition (in Clonezilla)). I followed the instruction from the first answer but applied it to the wrong disk and seems I removed ...
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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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Can Windows Bootmgr load Ubuntu without needing a second reboot?

I have Windows 10 on an SSD in a DVD caddy (/dev/sdb) and Ubuntu mate on an HDD (/dev/sda). Both are Legacy BIOS/MBR on a Dell Laptop. I made a dual boot set up and tested putting GRUB on the Linux ...
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MBR2GPT states “wrong boot partition count, expected 1 but found 0”

I don't know what happened to my drive environment and cannot convert MBR to GPT, with mbr2gpt stating I don't have a boot partition: Info MBR2GPT was explicitly asked to run in full OS mode. Info ...
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Converting MBR to GPT in a computer using UEFI firmware

I recently bought a refurbished Dell Precision 7510 running Windows 10 and decided to clone the included HHD to an NVMe SSD. In the process, I noticed my laptop's partition system was set to MBR and ...
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Can the first sector be recovered and replaced by a spare sector? Will MBR get damaged if that happens?

MBR is always located at sector 0 on hard drive, but can it actually be offset? For example if the first physical disk sector is damaged and irrecoverable, what will happen to the drive? Will the ...
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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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In a dual OS PC, How to make the second OS invisible when running the boot loader and how to restore it when needed

In my pc, there are two operating systems in two partitions. Thus, the boot loader shows all of them when starting the PC. I want to make the boot loader run one OS in order to hide the existence of ...
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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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Why doesn't installing GRUB on MBR destroy the partition table?

I have read that my partition table is stored in the MBR. And write operations are performed sector-wise i.e, even if you want to change just a few bytes of a sector you need to overwrite entire ...
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Dump a Disk MBR into a bootable USB.. Is It Possible?

Reason: I have multiple system images on my hard disk unified with grub2 bootloader. I want to reinstall Windows 10 that exists on a particular partition. Issue: The bootloader will be replaced when ...
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how to install Windows 10 with Hiren's Boot CD by mounting an ISO file

I have started my laptop via Hiren's boot CD. There are two partitions in my HDD and one of them has my backup and other stuffs and a Win10 ISO file. I have mounted it and tried to install Win10 but ...
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Lost connection with WD Passport. I can't read my files anymore

I have external WD Passport 4tb harddrive which I haven't used a lot. I plugged it in maybe 30ish times since I bough it less than 2 years ago. At some stage the USB connector became lousy and it ...
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Windows XP recreating deleted profiles and not booting properly

I stumbled upon a Windows XP drive that needed repairing a while back, and after months of troubleshooting, I got it working. I created a fresh install and then manually placed in each folder from the ...
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Windows 10 Error after XP MBR fix

Today I repaired a Windows XP drive, but couldn't boot into it. So I thought that fixing the MBR from an XP USB would help. Once I fixed the MBR, the problem still continued. I tried booting into my ...
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Converting MBR disk to GPT using cmd

I've converted my drive to GPT but when I partitioned the drive, at the point when I type in active it is giving me an error message saying The selected disk is not a fixed MBR disk. The active ...
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What is the expected outcome of installing Windows 7 in BIOS mode onto a GPT drive [duplicate]

I'd like to start by saying that i am fully aware that windows 7 is no longer supported, and i am also aware of the implications of running an outdated vulnerable operating system on my physical ...
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hard disk not detecting when mounted internally

Mine is a Acer 5745G; was running Windows 10 + Linux (Under dos partition; Flavor - changed quite a few times, Started with Fedora-6 and last was Ubuntu). I had some hardware maintenance done and the ...
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Stuck on a grub rescue cannot boot into WIndows10

I had Windows 10 + Ubuntu Mate Dual boot installed. I deleted the Ubuntu Mate partition from Device Manager and after the restart, i stuck in the grub rescue. What I've tried: tried to do ls (hd0,...
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Unexpected EFI system partition ID on MBR disk

(Originally posted on stackoverflow, closed as off topic. Closing message recommended I ask on superuser instead.) I've been reading about the Linux boot process, and tried to orient myself by ...
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Safe to delete or shrink old MBR System Reserved partition after conversion to GPT?

I've seen similar questions before, but never have I seen anyone seem to recognize the difference between the MBR and EFI boot partitions, so I'm asking fresh. Basically, I just converted my disk to a ...
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Failed to convert mbr to gpt using gdisk

I urgently needed to install new windows and because of that I converted MBR to GPT using gdisk by following this video. After that my hdd resulted into invalid dynamic and was able to recovery 3 ...
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Cannot boot into any OS any more after bcdedit

I have a dual boot on my Dell laptop, Windows 10 and Kali Linux. During the weekend I did not boot into Kali since I use it just for work. I stayed on Windows because of gaming. There have been a ...
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0x00000f booting windows after installing arch

After installing Arch, Windows didn't appear in the GRUB 2 menu. So I added it manually, but after trying to choose Windows from the menu I got a 0x000000f error from Windows. My Windows 10 and Arch ...
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bootrec /scanos or bootrec /rebuildbcd not working

Recently my system got a BSOD while downloading something which led to corruption of system files. I was able to correct them using sfc/scannow and chkdsk /s /r. I can boot into Windows normally but ...
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Windows OS partition formatted and unable to proceed with the installation

My Sony Vaio laptop was giving lot issues so I decided to re-install the OS. I saw few videos on the YouTube on how to re-install the OS on Sony Vaio laptop and proceeded for re-installation. I ...
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Disk and CPU always 100% on Windows 10

I have a dual-boot Windows 10 and Windows 8.1. I actually installed Windows 10 to play games, but it seems like disk and CPU usage is almost full. I have tried to optimize it, but it just doesn't seem ...
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How do I change my disk from GPT to MBR (Without destruction of data)?

My laptop has Windows 8.1 currently running, and I plan to install Windows 10. The 8.1 that I am currently running is on Disk 0. I would like to convert Disk 0 to MBR, so that I can use EasyBCD to add ...
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Unable to Boot into other Hard drive

I have 2 drives in my windows laptop, one is HDD and another one is SSD. Initially I installed Windows on the main Hard disk and after few months I bought an SSD (lets call this SSD1) and installed ...
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Installing Lubuntu along windows 7 preinstalled in legacy/MBR

I want to use the option "something else" from the installation menu because I have already a partition empty and free to use. But I lubuntu is only showing option to create an efi partition....
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mac os gpt show command shows multiple Master Boot Record partitions in parts (MBR Part 12) on wiped internal hard drive

I ordered a used apple oem ssd hard drive off of the internet to replace my macs fried ssd. I intalled it and booted to internet recovery to do a clean wipe and a clean install. Upon inspection of the ...
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How to convert from EFI to MBR boot loader (and / or GPT disk to MBR disk) in Arch Linux without losing data

I've installed arch linux on my disk sdc,where sdc1 is the efi partition and sdc2 the root partition. I'm also trying to boot this installation with esxi 7,but it seems that it refuses to boot because ...
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How can I convert my partition from GPT to MBR and make my system dual boot Kali and Windows?

I want someone to help me how to install Kali on my laptop and want to know how to convert a GPT partition to MBR. I searched on YouTube but most of the popular tutorials didn’t work. Even after ...
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How to get back windows after messed up Xubuntu installation?

From Windows 10 32bit (MBR partition)using the Unetbootin tried to install Xubuntu from C drive of Windows that is without using any usb drive.When windows started I was able to choose the Unetbootin ...
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Windows cannnot be installed after using Diskpart to convert to MBR

ok so long story short simply trying to reinstall Windows 10 on a disk in a dual boot setup (Linux is on a physically separate drive and launches without issue). First issue was when using Rufus USB ...
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How to make a system disk image of windows 10 (GPT)?

I used to make a backup of my system partition (Win 7 MBR) with drivexml, so when something goes wrong I could restore my image along with progs and settings. Now I got new ssd and installed win 10 ...
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Is it possible to make a mbr legacy bootcamp win 10 from a gpt partitioned hdd on catalina 10.15.7 with bootcamp 6?

I tried to install win10 to ssd via efi boot on my macbook air 2012, it ran pretty well as far as performance, but because it's pre-uefi it makes it the garbage windows version with no sound, no ...
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Unable to format micro SD Card [duplicate]

I tried everything, including zeroing out first few sectors, using dd. But these operations have no effect whatsover. I am using Samsung micro SD to SD card adapter to connect to laptop card reader. ...
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Convert Windows Machine from GPT to MBR Partitioning Without Data Loss

Is it possible to convert a Windows machine from GPT partitioning to MBR partitioning without erasing the disk or having any data loss? I realize that the normal thing most people are trying to do is ...
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Windows installed from flash drive won't boot when flash drive is NOT inserted

I installed Win 10 from flash drive on C drive, and it works fine as long as there's flash drive inserted on boot. If there is none, the system won't load. I am POSITIVE that the system wasn't ...
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Fixing Windows Boot on UEFI with MBR partition

The laptop I currently own came with Windows 10 preinstalled. I installed Ubuntu 19.10 onto it (in dual boot). Back then I had no idea about MBR, GPT, BIOS, UEFI or any of that stuff, just followed ...
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Grub or HAL not reading partitions

I've setup and old laptop machine (first Intel M without PAE flag visible) and try to instal WinXP and Lubuntu in a dual boot config. Beside there was a need to upgrade HDD therefore had to add mSATA ...
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Why is a partion entry 16 bytes in length in MBR?

According to this website, the MBR boot record, each partition entry out of the four is of 16 bytes in length. Why is it so? “The information about primary partitions and an extended partition is ...
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529 views

Can't boot in Windows 10 2004: black screen after dell logo

Yesterday everything was fine and I haven't change anything in the mean time, but this morning, my computer can't boot anymore. When booting, the dell logo is displayed and the dell line is loading, ...
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Can I securely erase a HDD larger than 2TB on a laptop without UEFI support?

I would like to securely erase a WD 6TB HDD. The problem is that the only computer I have access to in the house which can run uninterrupted (for the 2.5 days I estimate this will take) is a 2009 ...

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