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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Computer won't boot after uninstalling Ubuntu and reinstalling windows

Hello fellow Internet users, So I decided to install Ubuntu, formatting my hard drive to do so, after a few months I decided to go back to Windows, so I formatted my hard drive and reinstalled ...
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816 views

BSOD, MBR corrupt, tried to fix using Testdisk on Linux dual boot, now nothing works

The short story is I received a BSOD from a Windows program. I then couldn't boot Windows. My system is set up with GRUB to dual boot into CentOS, so I booted into CentOS and attempted to fix the MBR ...
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179 views

Put linux on the fifth partition

So I have this quite "insane" partition scheme on my MacBook: Kevins-MacBook-Air:~ Ingwie$ diskutil list /dev/disk0 #: TYPE NAME SIZE IDENTIFIER 0: ...
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1answer
6k views

OS Missing? Messed up the MBR on Win7 64-bit

I have a Windows 7 machine with two hard drives: a 1TB C: drive and 500GB J:. I had Windows XP installed on C: and Windows 7 installed on J:. I installed Windows 7 after Windows XP from an installer ...
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1answer
704 views

Should I write the MBR to my SSD?

I'm planning to install a SSD soon, and I want to make sure I get all the boot time benefits. Right now, I have Windows and Ubuntu installed on two separate HDDs. The Windows drive contains the MBR. ...
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32 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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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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69 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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876 views

CloneZilla errors when attempting to clone and create partition table proportionally

Carrying on from a question regarding hard drive space on a cloned hard drive, i'm attempting to recover the space using CloneZilla and using the setting -k1, create partition table proportionally. ...
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457 views

How can I duplicate HBCD's XP boot loader with my MBR?

I'm stumped. I'm migrating a Win XP Lenovo T500 to an SSD: I copied the XP partition using EaseUS to the SSD. Aligned the boot sector using Gparted The MBR needs to be rebuilt (fair enough) ...
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1answer
79 views

Windows 7,8 dual boot- winload.exe error: “could not verify digital signature error”

I've a Asus G73Sw that has Windows7 Home pre-installed. I recently added a new 120GB SSD and installed windows 8.1 on it. Everything was fine till recently when the original Win7 on my other HDD, got ...
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979 views

Windows 10 Tech Preview error: “Windows cannot be installed on MBR disks”. My hard drive is GPT. Why am I getting this error?

I'm trying to install the Windows 10 Technical Preview from a USB drive. The hard drive I'm trying to install on has multiple partitions and is formatted with a GPT partition table. When I start up ...
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1answer
102 views

“Operating System Not Found”

I did a bad format of my pc, I think I erased the mbr too. Everytime I turn on pc it shows me the message "No Operative System Found" . I accessed to BIOS and changed booting option to read CD : If ...
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1answer
44 views

Windows installation disk MBR error

I need to install windows on a laptop which has no OS. When selecting the partition of Hard disk to install... Gives me such an error:"Windows cannot be installed to this disk. the selected disk has ...
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1answer
83 views

First 0x7E00 bytes on USB flash drive have become invisible

I have somehow managed to make the first 0x7E00 bytes (63 sectors) of my USB flash drive invisible to every program in Windows XP. I have tried about 15 different disk editors and tried a lot of MBR ...
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1answer
81 views

How do I boot into UEFI without going through Windows on my laptop?

So I installed Ubuntu on my Windows 8 laptop in a dual-boot configuration for some time, and tonight, I decided I would uninstall Ubuntu. Well, I've managed to lock myself out of Windows and I'm stuck ...
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1answer
56 views

Moving disk with 4kB sectors from enclosure to internal SATA controller makes MBR invalid

I recently bought a 750GB WD disk for a netbook and formatted it while connected via a USB adapter. Because the adapter would disconnect when it was trying to access the ext4 journal, I connected it ...
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1answer
203 views

Debian grub bootloader can't find windows 7

I have been using Windows 7 for quite a while on my machine in the following configuration. I have three hard drives, all different sizes, with Windows being installed on the largest. This is also the ...
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1answer
133 views

Recover 2.7TB partition converted from GPT to MBR

I have a 3TB disk which had a 128MB Microsoft basic data partition at the beginning, and the rest was a large ~2.7TB ntfs partition. I recently converted this disk from GPT to MBR, and the second ...
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299 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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1answer
41 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
38 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
330 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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105 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
124 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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1answer
61 views

dd MBR and one partition

I have 2 partitions on a drive and I need to use dd to create a new image of just the MBR and second partition. Here is the output of fdisk -l /dev/sda Device Start End Blocks ...
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199 views

UEFI BOOTLOADER with MBR Drive

I turned on my laptop today and it started saying "BOOT Device not found Error 03F0 Hard Disk", I checked my BIOS Setup and it was in UEFI Mode, I tried to boot from CD/DVD in UEFI mode and got same ...
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1answer
113 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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473 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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1answer
364 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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1answer
18k 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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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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285 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 ...
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1answer
199 views

Change Windows from booting with BIOS to EFI from other OS

So I have just used gdisk to remove the MBR on my Mac's drive because I got annoyed that I couldn't access my fifth partition - but then learned I could with GPT. Now that I did the "conversion" (its ...
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1answer
5k views

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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1answer
188 views

MBR Partition Table not found

Well... I was trying to activate my windows 7, the first program that I used was "MBR Regenerator" that would turn windows back to the trial mode. Ok. The program asked to a restart, and I did it. ...
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1answer
1k views

Boot entries removed through easybcd. How do I restore Windows 8 MBR?

Somebody deleted my easybcd boot entries when I wasn't looking! I had a dual boot with ubuntu. I used my live usb and installed boot repair on the demo. After I used it, my ubuntu install was working, ...
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1answer
79 views

on a server does master boot record formating of the disk support the dynamic disk type?

If I convert a disk from basic to dynamic is it possible to format it to master boot record (MBR) or is it just possible to format with GPT?
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1k views

What is keeping me on 'Preparing your desktop…' after my Windows 7 parition migration?

Here's the situation: I had Windows 7 and Ubuntu 12.10 dual booting on one 120gb ssd. I recently purchased a 240gb ssd and wanted to migrate both of those partitions to this new one. I used Gparted ...
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1answer
247 views

Deleted the GPT partition/ record

A friend of mine had GPT partition n his Lenovo laptop. While formatting the computer and reinstalling the OS, I wiped of all the partitions, and created 4 new partitions. Now after installing ...
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1answer
398 views

Suspected Corrupted Windows 7 MBR?

So, this may not be the correct place to put up my question, but i'll give it a shot. I'm having an issue repairing this computer. It was brought to me with the described issue of 'Not turning on' ...
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1answer
429 views

Linux: install GRUB on an external drive destined for another machine

I have a hard disk that's failing, so before it dies completely and I have to resort to backups I want to copy everything (OS and all) onto a new disk, and put that back in the machine the failing ...
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1answer
250 views

windows 8 release preview and GRUB

On my pc I have Windows 7 on the primary partition, Linux Mint 12 on a logic partition and windows 8 release preview in an extended partition. When I installed w8 it has overwritten GRUB and ...
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1answer
229 views

cannot boot from CD, MBR Error with no HDD attached

I'm trying to get an older 32 bit computer up and running. I set BIOS to boot from CD 1st, HDD 2nd. It gets to "Boot from CD" but it never gets to "Press any key to boot from CD". The screen just ...
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1answer
132 views

External Hard Drive prevents windows from starting

I have an external hard drive that I was using for installing windows on my computer, and now it won't let Windows start up. The drivers load (in safe mode) but the blue bar never comes up (in normal ...
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1answer
909 views

Want to remove 2nd disk but MBR needs to be moved. How do I do it?

I have a laptop with two HD, the second one was added later. I had Windows Server 2008 installed on the first disk (0) and thn added the second disk (1). Next I installed Windows 7 on the second disk ...
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1answer
954 views

Editing MBR for flash device

I have a flashing system for a tablet what got an internal SD card to be formatted on every flash. Basically, it writes an MBR file to it, instead of using a partitioning app (fdisk, or anything), and ...
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1answer
65 views

Problem when booting debian

I am trying to setup a home server running Debian. I set up the partitions manually using gparted with the drive connected to a usb caddy on another PC, used debbootstrap to get the base file system. ...
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1answer
407 views

How can I simplify my boot-loader-chain into a single menu? (ubuntu windows)

I've installed Windows XP Proffesional, Windows 7 and Ubuntu 9.10. On every boot my system nags me with 2 menu´s. Ubuntu Grub2 Bootloader (Ubuntu or Windows 7) Windows 7 Bootloader (Windows 7 or ...
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1answer
135 views

Installing Ubuntu 12.04 x64 in MBR

I wanted to install Ubuntu 12.04 side by side with Windows 8.1 in my SSD. Windows is already installed in MBR, even though I have a UEFI machine. And so I used the legacy Bios. I have confirmed that ...