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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Dual boot Linux with Windows 7

I am trying to recover an installation of Linux on my machine, preferably without having to reinstall Linux (and possibly Windows) altogether. I have installed Pear OS first, and then installed ...
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136 views

How to install MBR on to harddrive

Little bit of background... And i may be incorrect. Someone before me, installed the MBR on one hard drive & the Windows 2008 OS on another ard drive. So when the hard drive with the MBR went ...
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550 views

Configured boot loader with EasyBCD, screwed up Windows

I have a particularly challenging issue with my windows boot loader on my Dell Latitude e6520. I have two drives, an internal HDD and a SSD installed into the system device bay in a caddy. Here's my ...
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2answers
237 views

How to change partition order in MBR?

I have a 16 GB USB stick, and I want to use as an Ubuntu installer, but I also want to have a data partition. For that I created have two partitions: Model: Kingston DT Elite 3.0 (scsi) Disk ...
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2answers
900 views

How do I convert a MBR disk containing a Windows boot partition to a GPT disk while leaving the boot partition bootable?

I have an existing Windows 7 64-bit boot partition on a 3 TB hard drive, which is an MBR disk. My BIOS is definitely a UEFI BIOS. The motherboard is a Asrock Z77E-ITX (see ...
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1answer
1k views

Kali/Ubuntu doesn't detect windows partition

I am trying to dual boot Windows 7 with Ubuntu or Kali Linux but i am unable to do so. I have backed up all my data to an external hard drive. So it is safe to work with partitioning. I have a 500 ...
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2answers
5k views

USB hard drive moved to internal, now shows GPT Protective Partition

I'm using Windows 8.1. Using a brand new 1TB hard drive, I attached it to a SATA to USB connector, formatted it and transferred about 500GB of data to it. I don't remember if I formatted it as GPT, I ...
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1answer
152 views

Disk boot failure from time to time that dissolves upon another reboot

I'm running a Windows 8.1 on my PC, all of a sudden this PC started rebooting (while idling) and printing out the DISK BOOT FAILURE disgusting error. When I reboot the computer once again everything ...
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2answers
78 views

Is there a way to fix this Windows boot issue?

I have a dual-boot system (Windows/Linux) and recently started having trouble booting into Windows. Probably an MBR problem. I can use a GRUB2 bootable CD to access Windows, and Linux boots just fine. ...
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1answer
334 views

Does Installing bootloader to the MBR affect “Master Partition table” in any way?

I'm a learning grub2. I have a system with 4 primary partitions, with Windows 8 installed on drive C. I'm planning to install grub on the MBR, so I can boot ubuntu/backtrack.iso images. I know that ...
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0answers
328 views

Convert disk with FreeBSD disklabel to MBR or GPT?

I've got a disk that was once partitioned using only a FreeBSD disklabel. The MBR is all 0. The BSD partitions (as dumped by gdisk under Linux) are: BSD partitions: 1 16 ...
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3answers
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PC can't boot even from a live USB - probably corrupted bootloader or MBR

While getting rid of dual-booted Linux I tried recovering Windows 7's bootloader with EasyBCD. (one-click process described in this video) However, something went wrong and now GRUB is gone as it ...
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1answer
926 views

Backup a hard disk's MBR and first (shrinked) partition to a single image file

Despite a lot of Googling I couldn't find an answer to my problem. I'm a Linux sysadmin and I want to backup a Windows XP installation (but it could be any other OS) located on the first partition of ...
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0answers
112 views

BSOD on VHD on new SSD after a friend played some 'custom' MineCraft… Malicious rootkit virus? MBR corrupt

SPEC: Dell XPS 420 with (almost brand) new Vertex OCZ SSD. Hardware tests seem ok. Hi guys, like a couple of folks have mentioned, I'm having BSOD issue (0x0000007b - 'no boot device') all of a ...
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How to correct 512-byte sector MBR on a 4096-byte sector disk?

Final update: I already knew what I needed to do to fix this problem; I just didn't know how to do it. I was hoping there would be some ready-made tool to do that automatically - but couldn't find ...
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1answer
79 views

How to reinstall Windows MBR with no Windows listed?

There is nice article how to reinstall windows MBR: http://support.microsoft.com/kb/927392 however there is a catch. I have Windows system, but when I go with repair mode it is not shown and as the ...
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0answers
93 views

Backing up MBR - why not restoring the boot code?

I've seen two pages explaining how to backup & restore the MBR: Linux: How to backup hard disk partition table (MBR) UNIX / Linux: Copy Master Boot Record (MBR) They've shown an example with ...
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1answer
492 views

Read MBR from Hard disk image file (.img)

I have created two image files (.img) of my two Hard disks which were RAID0. Now I need to copy MBR bytes from my image files in order copy them to mentioned hard disks, because I have re-created the ...
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2answers
814 views

Fix MBR and partition table of windows 7 hdd/installation

Apparently the partition table still seems to be somewhere in tact, as well as all the files. Debian is able to mount the ntfs partitions, I can read/write and I am using dd to image the data onto an ...
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5answers
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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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1answer
22k 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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3answers
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Need a place to store a few bytes of meta information on storage media

I'm working on an embedded project. I need a place to store some filesystem-independent meta information on a storage device. The device has an MSDOS partition table. The device also may have ...
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2answers
818 views

I (stupidly) converted a TrueCrypt encrypted disk to GPT in Disk Management: now TrueCrypt won't mount it

Backstory: After moving a Macrium Reflect disk image from my TrueCrypt external drive (with whole disk encryption) onto a unencrypted drive and using Windows PE with Macrium Reflect to restore my ...
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2answers
1k views

Small unallocated space left, when partitioning harddrive. What is is meant for and why can't I use it?

Every so often I encounter a small unallocated space in the partitioning scheme of a hard drive, when I want to create a maximal sized partition, even though I have set the "Free space following" to ...
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0answers
280 views

Corrupted Windows 8 MBR, recovery disk's repair tools fail

I'm using Windows 8 64 bit on an ASUS N56 Laptop. I was attempting to upgrade to Windows 8.1 and the installation was interrupted. Attempted System Restore, which didn't work. Long story short, I ...
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1answer
56 views

SDD with OS doesnt work because HDD with Bootloader is dead

This kind of problem is very common as I see, but I can't find anything helpful anywhere. There was a common hdd with an old Win7 installation. A new SDD was bought, a new fresh Win7 was installed on ...
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3answers
4k views

Can I recover my 4TB SATA HDD accidentally re-initialized with MBR?

I changed my 4TB SATA HDD to a different 3.5 inch USB enclosure. When plugging the new enclosure's USB cable into my Windows 7 x64 PC, in the Disk Management MMC, it asked to be initialized with MBR, ...
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MBRs, VBRs, and partitioning of storage devices: how and why they vary across device-types?

The wikipedia entry for Boot Sector says this, CD- ROMs usually have their own structure of boot sectors, for IBM PC compatible systems this is subject to El Torito specifications. ...
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3answers
2k views

Convert GPT disk to MBR disk in-place?

Is there any tool that can reliably convert a disk from GPT to MBR in-place? (i.e. without having to backup/restore any partitions.)
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1answer
2k views

How to find out if my MBR is infected?

I imagine that bootkits and other malware can install themselves in the MBR and be invisible to antivirus software running after the MBR was executed. Is there any way to execute an antivirus scan on ...
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Using GParted to convert GPT to MBR without access to an OS

I wiped my Windows 8 thinking I could install Windows 7 x86 but I can't because the disk is GPT. I need to convert to MBR. I'm trying to use GParted to convert to MBR but it seems GParted can only ...
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1answer
2k views

Linux Live USB Drive Created with dd Corrupt Partition Table and Reliability Issues

I am trying to create a Linux Live USB drive from an isohybrid (.iso) image. To accomplish this task, I have taken these steps in the past: Securely wipe the flash drive using the command: sudo ...
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1answer
5k 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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3answers
686 views

Converted my HDD on Mac to GPT

I converted MBR to GPT and I lost everything on both of the partitions, though I just converted one partition (Bootcamp's) but it still converted them both. Any ideas how to get my HDD MBR again and ...
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2answers
7k 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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1answer
2k views

How to Install Windows XP to wiped out HDD without MBR?

I was using my old laptop with SSD as a primary drive. After buying the SSD I formatted the HDD for storing just personal data, so I wiped it out (OS, MBR etc. - everything). Now I moved the SSD to ...
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1answer
788 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 ...
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2answers
315 views

Accidentally Deleted MBR; Don't Know Filesystem Type

I have a Linux derivative OS on a non-bootable hard drive. I'm currently using a LiveCD to help diagnose the issue; however, I mistakingly deleted the MBR in the process via testdisk. Is there any ...
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0answers
316 views

1TB ext4 Harddrive with 400GB NTFS MBR written by mistake

I was imaging my ext4 1tb storage disk that I had accidentally formatted to NTFS with testdisk and an external usb dock when I had to back out. Testdisk asked about writing the MBR and I clicked yes. ...
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2answers
268 views

Laptop not booting to Windows 7

I installed a fresh Windows 7 overwriting Fedora 17. The installation was successful, but the laptop is not now booting. It's showing a black screen with a blinking cursor.
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1answer
949 views

Does rebuilding the BCD affect the MBR?

I'm dual booting Linux Mint and Windows 7, and windows 7 is having a "device inaccessible" error preventing it from booting. I'm using grub for my MBR. From what I understand, the BCD is what ...
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2answers
923 views

Windows 7 GPT to MBR? EFI to BIOS

I want to convert my existing GPT partition table to a MBR one. UEFI is giving me too many headaches with Linux. Actually, I'm just interested in my Windows partition. All the articles on the ...
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0answers
72 views

Ubuntu 12.04/xp dual boot testdisk wrote the wrong mbr to my storage disk

Using disk Utility in Ubuntu 12.04, I inadvertently formatted my 1TB ext4 storage disk to NTFS. I was in the process of doing clean installs so I just pulled the drive and set up a usb hdd dock to ...
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2answers
1k views

Partition suddenly became empty, any way to restore it?

I shutted down my o.s. and while it was shutting down I pressed "Cancel" the exact moment it shutted down, so it kept shutting down and I think this corrupted in some way the partition table. The O.S. ...
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1answer
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Need copyied hard drive to be bootable [duplicate]

I copied all the contents of a hard drive to another. It wont boot of it though. I need it to. I deleted a partition and used a data recovery, The files i copied were the recovered ones. It recovered ...
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3answers
260 views

Still Booting to Windows after Debian Install

I recently installed Debian Linux to one of of my storage drives alongside Windows 7 (on a different drive) and for some reason when I start up my computer I still boot right into Windows instead of ...
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1answer
2k views

Mounting Drive to DosBox and using Debug.exe

I am trying to track down the MBR on a scavenged Hard Drive. The hard drive won't boot so I've been trying to change the MBR through DEBUG.exe. The problem starts with my 64 bit machine because ...
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1answer
2k views

Linux set bootflag?

Ok, so I messed up my MBR and I need to set the boot flag, (not the active partition!). I have searched for similar questions but all the answers I see is "how to set a partition to active", and that ...
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2answers
551 views

Chainload EFI Bootloader from grub2 installed on MBR

When trying to chainload a EFI-bootloader from my grub2 I always get an Invalid signature error. According to this question, it happens because my grub2 is installed on an MBR-harddrive. The author of ...
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1answer
329 views

How to extract .raw backup of Windows to a partition?

I have a backup of a Windows 7 drive (virtualbox install) made in .raw format and I want to extract it to my empty partition ready for Windows. Im using OSX. Any ideas? I have tried this: sudo dd ...