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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Unable to access UEFI BIOS setup or boot into Windows after setting MBR with EasyBCD then resetting it

I can't exactly remember what the menu items were called (because I can't boot into my computer), but I'll try my best. Earlier I tried using EasyBCD with Windows 8 on a UEFI Lenovo IdeaPad Z580 ...
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23 views

My disk at half size after formatting

I'm a long time linux user, I'm also a Windows user, after formatting my brand new USB dongle I get ~30Gb from the partition table available to create a new partition where the nominal capacity of the ...
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27 views

How can one Windows 7 corrupt second one on different SSD?

Words of true desperation: Several days ago, my system SSD broke, so I send it for RMA. I was in last step of making my bachelor thesis, so I had to be up and running. I used my second, older 60GB ...
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2answers
28 views

Is it possible to recover data after disk' gpt to mbr conversion?

I tried to install windows that requires mbr system to a gpt system. I converted gpt to mbr using diskpart utility. After it all my logical disks disappeared and only one (with total amount of space) ...
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4k views

Kali Linux & Windows 7 : Switching Grub to MBR

I'm trying to install Kali Linux (i386) alongside Windows 7 (x64). I have prepared suitable free disk space and placed Kali there. The last thing done by installation was to prepare GRUB. whole kali ...
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105 views

windows 7 hanging at “starting windows” screen after installing on preinstalled windows 8

i got this HP laptop and windows 8 was preinstalled but i wanted to have windows 7 and ubuntu only (don't ask why). so being unaware of the whole GPT - MBR thing i went ahead and deleted all the ...
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9k views

Recover Windows 8.1 MBR without a working Windows system available

I just screwed over my MBR and Windows won't boot. I don't have a working Windows system available to create a recovery USB disk. My laptop doesn't have a CDROM drive. How do I create a recovery disk ...
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11 views

Missing Operating System error on USB bootable pendrive

Recently I made a Live USB Stick for Chromium OS. I Installed Chromium OS and Then I formatted my USB pendrive.But now when i make Live USB Stick of any other OS (e.g. Ubuntu, Kitkat, Windows, etc. ) ...
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20 views

Need help fixing MBR on 2K3/Vista multiboot Dell 620

Such a long story and pain in the butt... My customer has asked me to load 7 windows vista clients and 4 windows server 2K3 machines bare metal(because apparently VM's aren't good enough) on a Dell ...
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3answers
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Fixing damaged partition table

This is continuation of Recover Extended Partition , but this time I have different problem related partition table it self. I managed to restore partition that I needed and backed up files that were ...
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6answers
21k views

How to uninstall GRUB and get windows 7 bootloader back?

I have windows 7 home premium currently installed and I have just recently installed Linux Mint and it has replaced my MBR with GRUB. Is there any way I can restore the normal Windows 7 Boot Loader ...
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17 views

Cant find operating system

I'm using Windows 7 x64. I want to use disk management. After expand my C disk (allocate from D disk) sometimes I try this expand merge etc. After reboot then I saw error in black screen Can't find ...
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2answers
2k views

How to fix Truecrypt MBR using Command Prompt or Linux live USB?

I was playing with TrueCrypt and decided to make a fresh installation of Windows 7 from USB stick. Unfortunately Windows 7 installer: "setup was unable to create a new system partition" My entire ...
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1answer
23 views

Creating an additional partition on MBR partitioned drive with data on it

I have an external 500GB HDD which already has data on it, there is currently one partition on the drive but I need to create a new one on this drive with at least 10GB of space. I've already used ...
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1answer
25 views

Move partitions on disk

In order to install btrfs on my computer, I need a 1mb+ space before the first partition. The First Partition is the boot partition which starts at sector 63, the second partition is the dell recovery ...
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2answers
934 views

Cannot Install Bootcamp on Mac Fusion Drive

I have two drive installed in my mid-2013 Macbook pro. It is running osx maverick. I set the two drives (an ssd and a regular HD) up using the fusion drive (following the diy fusion drive guides out ...
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46 views

System Repair unavailable after moving Windows partition

After discovering that my System Reserved partition was much smaller than Microsoft recommends, I decided to use GParted to extend it with some of the unallocated space. Unfortunately, there was no ...
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2answers
3k views

How to create hybrid MBR/GPT partition on USB drive?

Can you please tell me how to create a hybrid MBR/GPT partition on the USB drive? I need the MBR for the boot as my BIOS doesn't boot GPT partitions.
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3answers
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Tools to convert GPT to MBR without access to an OS

I wiped my Windows 8 thinking I could install Win7 x86 but I can't because the disk is GPT. I need to convert to MBR. Is there a tool to do that? Maybe I wrong: but it seems like GParted can only do ...
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1answer
30 views

Windows XP bootloader issues

How to repair bootloader I was looking through this post and feel like this is the process I need to be following. I'm working with Windows XP and need to rebuild the "BOOT.INI" after deleting it. ...
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2answers
12k views

What are the differences between MBR vs GPT vs any other partition scheme?

Can anyone tell me what the main differences between i.e. MBR vs GPT or any other partition scheme are? Why would one choose one over the other? I am not an expert but from new release of Mac OS X ...
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70 views

Cloning Windows 7 installation from MBR to GPT drive and make it bootable

I've seen threads on similar topics - such as this one - but the answers never seem to solve how to make it bootable. I have Win 7 64-bit on a PC installed on a 2tb MBR volume. The motherboard is ...
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134 views

Recover data from a diskpart > clean command

This must be my one time blunder but I did manage to clean my 2TB backup external HDD in an attempt to clean a pendrive to make a bootable pendrive for installing Windows 8. Now the help file for the ...
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18 views

Changing MBR code

I have read that during the booting process in linux, BIOS loads MBR from the first sector of the bootable device. Now, if I change the code of size 446 Bytes in the first sector of the bootable ...
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5answers
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Norton Ghost usage, Linux? ISO? Server? MBR?

Before evaluating Symantec/Norton Ghost to image partitions, I have a couple of questions about using this tool: In the product page, it only mentions Windows: Can Norton image Linux partitions as ...
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60 views

Trying windows 7 dual boot on a windows 8 machine

I have a ThinkPad (T530) with Windows 8.1 with one HDD and this is what I have done to achieve dual boot with Windows 7 on this machine - On my main and only hard disk I created a new volume ...
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21 views

How to change address of Master Boot Record

Can we change the location ( Starting and Ending address ) of Master Boot Record of a bootable device ? Doing so is operating system dependent or not ? If we can change the location of Master Boot ...
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1answer
55 views

Make 3TB hard drive appear as two (2TiB+750GiB) with MBR

Some manufacturers of external hard drives with capacity exceeding MBR partition capacity seem to sell them pre-partitioned to a 2TiB partition and one with the remaining capacity. Tools are ...
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1answer
81 views

How to make grub2 boot another drive MBR?

My laptop (DELL Vostro 3350) have two hard drives: 1- /dev/sda , ssd with Ubuntu14.04 , grub2 installed to this MBR. Installed on normaly hd bay 2- /dev/sdb , stock hd (with recovery partition etc ...
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27 views

Why does 32 bit reference sectors and not bytes for MBR hard disks?

Trying to educate myself on hard disk architecture and I am trying to wrap my head around the concept of the 2TB limitation for MBR. The question that arose is why 2^32 related to sectors and not ...
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97 views

Fix MS-DOS MBR Without DOS Boot Disk

How can I restore the MBR for MS-DOS without having an MS-DOS boot disk or floppy drive. Ideally, I would like to be able to do this from a Windows 7 Win PE disk. The only solutions I've found online ...
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79 views

MBR bootsector that boots the active partition

I have the burg bootloader currently installed on my mbr (+ the following sectors), and I would like to install it on the boot partition, and replace the mbr with a simple one that will boot the ...
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70 views

How does Diskpart Clean All affect MBR and implications?

I want to overhaul my entire internal hard drive, re-partition it, and re-install Windows Vista. After booting on the Vista Installation Disk and opening Command Prompt, I'm not sure whether to use ...
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55 views

How to convert MBR with extended partition to GPT?

I have a disk with extended partition, and are all used. Now, I want to convert this disk to GPT. But GPT does not support extended partition. I wonder if it would be possible? Or maybe the extended ...
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1answer
79 views

What are GPT Protective volumes on Windows 8 and can they be recovered?

I have seen a few GPT Protective volumes now with Windows 8.x. These are default configurations where the users are very "un-savvy" and so they did not enable anything as far as additional security ...
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Data recovery on bitlocker drives? [duplicate]

I have a Windows 8 drive that had the GPT Protective partition converted to MBR in an attempt to read it on another system. The user then did not see the drive yet still and converted it back to GPT. ...
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143 views

How to reset MBR partition table macbook pro?

I used refind/refit's bootsync utility to update my macbook pro's mbr partition tables as a part of a triple booting process. Now I want to replace the operating system installed on one of the ...
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14k views

Windows 8 won't boot, BCD error

My Windows 8 laptop has a boot problem. When Windows tries to boot, I get this error message: Boot configuration data is missing File: \BCD Error code: 0xc0000034 So as suggested I booted to ...
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27 views

Windows XP MBR as a file [closed]

I would like to start a Windows XP installation in a VirtualBox VM from a physical partition. For this I need the Windows XP MBR as a file. Can anybody read this out and upload it for me? If somebody ...
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Can xcopy make a bootable copy (clone) of Windows?

Following on from my discussion with @JustinD in the comments here, is it technically possible to simply xcopy the contents of a Windows partition to a partition freshly created and formatted on a new ...
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1answer
93 views

UEFI with MBR partition table?

i want to convert current GPT partition table to MBR. But my laptop has UEFI, so is it safe UEFI with MBR partition table? or maybe i am misunderstanding about UEFI/GPT things?
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23 views

Copying just the Windows 7 VBR (not MBR) in dd

I know how to copy the MBR using dd. This is just copying the first 446 bytes of the source HD to the new HD. What I am trying to copy is the VBR (volume boot record, partition boot record, or ...
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what is difference between gpt partition and mbr partition and where structure differs?

Where GPT table using and MBR partition table using. Windows 8 installing and booting in UEFI mode so it is supporting GPT partition style so we can create 128 primary partitions using windows8? can ...
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51 views

Restore hard disk signature

I have put my desktop hard drive into another machine. To make it usable I had to go to Device Manager and click Online. When I put my hard drive back into the old PC, I am not able to boot the ...
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1answer
112 views

How to save Lenovo Ideapad Flexbook with a 1234F command prompt and boot issues

I got a little bit overzealous when trying to make my Windows 8.1 Ideapad dual boot Linux and now I'm afraid I'm about to lose 2 whole OS's worth of mission-critical data. Here's what happened: I ...
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123 views

3TB Hard drive stops reading/locks up after a few minutes of use

This has been driving me a little batty lately as i dont understand enough to fix the problem. My HTPC (Windows 7Pro 32bit) currently has two USB HDD plugged in under separate ports. The 2TB is a ...
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67 views

Restore MBR to another Disk

My system had Windows and CrunchBang installed. It used GRUB over the Windows boot manager. I now deleted the CrunchBang partitions and want to restore the Windows boot manager. When I insert the ...
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59 views

microsoft boot manager replaced by grub2?

I was running my pc with Win 8.1. I was thinking about trying linux for a long time so I decided to give it a try. I tried to install it several times but I was never able to boot to it, all I could ...
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Cannot boot on any device if hard disk inserted

Suddenly, I cannot boot from any device (hard disk, CD, USB): I get just a black screen and nothing else. When digging in this issue, I tried removing the hard drive and now I'm able to boot from CD ...
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Oops I broke my MBR. What do I do?

Note: I just posted this on the mac stack exchange, but they didn't have tags for MBR or GPT so I thought I might have better luck over here... I installed Mavericks a couple weeks ago and discovered ...