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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How do I deploy Windows 7 to UEFI or really boot in legacy mode?

I used to deploy a windows 7 image to computers using clonezilla, after creating two partitions and setting the bootable flag on the system partition. Now however, I've got some computers with an ...
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Bootloaders - Booting an MBR only OS using a UEFI only BIOS

A long time ago, in a computer lab far far away, I stumbled upon a bootloader which dared to cross the boundaries between MBR and EFI. It's name was Clover. Using clover, you could boot any number ...
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MBR max of 2TiB on each partition or on disk?

A quick point of clarification needed. With the MBR Maketecheasier.com says each partition can only go up to a maximum of 2TB in size The Differences Between MBR and GPT But IBM's ...
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Broke MBR & Grub2 on Multi-Boot System

For all those out there looking for a challenge, this is the most messed up hard-drive I will probably ever have to deal with. So to make solving this massive problem as easy as possible, I am going ...
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Computer boots up into 'startup repair' after running disk cleanup

I ran the 'disk cleanup' utility in Windows, and it found 80GB of temp files. This was fishy, since my disk is only 128GB and definitely did not have 80GB worth of temp files, but I let it run ...
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How to repair boot in a dual boot setup with two Windows 7?

I installed a second Windows 7 installation on a separate hard drive on a computer that already had a Windows 7 installation. Initially all worked great - each time I restarted I received a boot menu ...
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difference between MBR and disk label

Is MBR/partition table = disk label ? I read about about the description of disk label as The first sector of a disk that contains disk geometry and partition information. ...
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330 views

After upgrading from Windows 7 to Windows 10, system thinks GPT partition is MBR

I have a Windows 7 system with 3 hard drives - Disc 0 is the boot disc formatted with MBR, Disc 1 is a 4 TB disc formatted with GPT, and Disc 2 is a 2 TB disc also formatted with GPT. Disc 1 has one ...
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Booting Win7, GPT and MBR disks setup

I've got the following setup in the PC: Old disk: formatted with MBR, New disk: formatted with GPT Both have Win 7 installed are are booting fine on their own (in legacy or EFI mode, respectively). ...
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How to install Windows XP MBR from FreeDOS

I accidentally corrupted my Windows XP installation (i use it for programm testing). Luckily, i had copied the installation files before. Now i made a partition via FreeDOS, and i copied Windows XP ...
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What is hd0 and sda/sdb in Linux?

I'm completely new to Linux, and am using Ubuntu 10.04. I'm confused when to use what (hdx,y) to represent which hard drive. I have 2 hard drives, the first one is identified as /dev/sda (in Disk ...
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How to see if USB stick has MBR?

I have a USB stick supposed to be bootable, but the computer does not boot it. I suspect that there is no MBR (Master Boot Record). How do I test if this is so, preferably from command line in ...
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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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Is there a difference between the first 446 bytes of different windows MBRs?

After reading a lot about install algorithms for installing windows from linux, for installing linux in addition to windows, .... I'm wondering a bit. From what I read for example for installing ...
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HDD - MBR or LBA corrupted, can it be recreated?

I have to recover an IDE Hard drive with some logical damage. After connecting it as external drive using an IDE-USB interface, I encountered the following: - Number of sectors seems to be zero - In ...
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29 views

Why is there not some simple way of booting ISO formatted USB? [duplicate]

From what I understand the only difference between booting from an HDD/USB and CD/DVD is the way they are formatted (the first 2 have the MBR and the second 2 the ISO layout). I mean it's not some ...
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57 views

How to install Windows XP x64 manually?

OK so my question is simple I've a nice build of Windows 10 and OpenSuse and all my partitions are put in order which I don't want to risk loosing, letting about 10 years old OS managing those stuff. ...
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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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Re-installing MBR (Master Boot Record) on Windows 7

I have GRUB installed on MBR for dual booting with GNU/Linux. However, now I want to delete my linux partition, and go back to using Windows 7 MBR. How do I re-install MBR while logged on Windows 7, ...
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321 views

Debian 8 Installer (partman) doesn't detect Hard Disk Drives on Ultrabook, but all other linux commands (fdisk -l, lsblk…) does detect

I'm installing Debian 8.0.0 and 8.1.0 (both amd64) on a Ultrabook (Dell Inspiron 14z 5423) which has both a SSD and a SATA HDD. During the install, when it asks for partitioning, I choose "manual" ...
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Mint Linux GPT to MBR

I am currently running Mint Linux on a PC with an old Intel Motherboard. It works just fine but I have have to select the HDD as the boot device manually upon start-up every time because the BIOS ...
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MBR protective to MBR hybrid OSX

Right to the point I wanted to install W10, but it said that it doesn't like my gpt partition. So, with the help of gdisk, I followed this tutorial MBR hybrid to MBR protective Buuuuut it turns out ...
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After a hard restart, I am unable to repair the MBR of my BitLocked drive and don't have the key

Why would Microsoft not build in a password entry widget into the repair process? How can I save my data? I've tried everything I can think of. Windows 8.1 Pro (not sure if version N or not, not ...
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What should the MBR look like?

I was reading about a computer's booting process and found out that the computer loads the bootloader's code from the MBR. So I wanted to take a look at my MBR like this: sudo dd if=/dev/sda of=mbr ...
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Can't extend volume

Found unused 90GB on array on Windows 2003 Server SP2 and extended array into it. In Disk Manager it is now shown as unallocated of MBR type and no option to extend existing volumes into it. Diskpart ...
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732 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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Does formatting the disk rewrite MBR (master boot record)?

The title says it all. I want to know whether MBR is overwritten after a Windows clean installation.
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Installing Windows 10 “Windows can't be installed on MBR. Convert to GPT”

Alright, it's a long story. I was on Windows 7, with 4 partitions. I decided to do a complete clean up and upgrade to Windows 10. So, while doing that, I selected the option, (I don't remember it ...
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how can i install windows 7 parallel to 10?

so i wanted to upgrade my laptop windows from 7 (which it came with) to 8.1, i couldn't do that because the HDD was in MBR format so i had to change it to GPT and so i did, now i'm on windows 10 i ...
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Add boot entry to MBR for USB — Non Specific to OS - Use EasyBcd Ireboot to reboot to USB

So I am toying with installing Grub and editing Grub configs from Windows to get the same end goal, but it would be easier/better to use Microsoft products since I am not dual booting Linux. The end ...
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external hard drive rescue mbr to gpt to mbr

good day all I am a slightly losing my mind at the moment. I recently bought a flashdrive for backup livecd/rescue purposes,but I am a day to late. I have an external hard drive, 2TB Seagate - file ...
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How to make recovered windows partitions bootable?

I have the following situation: I have a "backup" of a failed/non more existend disk which has an exact copy of all its partitions but the difference that it has no bootloader or what so ever and it ...
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176 views

How to remove 'ubuntu' option from os selection menu?

I recently installed Ubuntu 15.04 on my Dell Vostro 15 3546. Its has Windows 8.1 installed. I divided the 500 GB HDD in to 2 and installed Ubuntu in one partition. Due to some error in installation I ...
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Windows cannot be installed on this disk. The selected disk has an MBR partition table. On EFI systems , Windows can only be installed to GPT disks [duplicate]

I want to format c drive and reinstall windows 8. previously I've installed windows 8 and ubuntu together in same C drive in separate partitions.previously I've configured ubuntu grub to select which ...
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Update win 7 MBR with 2nd disk win 10

On the same box I have a hdd with win 7 & a hdd with win 10. Can I get the win 7 to detect that I've added a win 10 disk. I installed the win 10 while using that box, but the 1st disk wasn't ...
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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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349 views

Freeware MBR to GPT conversion in Windows without data loss [duplicate]

I recently had to rehouse an 8 TB drive due to damage to the micro B socket. It has only ever been one partition. Windows 8 and Windows 10 incorrectly identify it as being split into 3 partitions. One ...
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Install Windows after Linux [duplicate]

At first i installed Linux mint on my hard drive. This disk is splitted up into two partitions. After i installed linux i formatted the 2nd partition and deleted and created it new. It's the ...
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176 views

How to reformat a hard disk that was previously in a RAID configuration?

I have 2 internal Seagate SATA hard disks that were, at evidence as far as I can judge, mounted in a RAID configuration. These disk have been given to me and were used on another computer. The 2 disks ...
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How to get MBR Wizard 3.0 to work?

I've downloaded the program files. Am trying to get MBR Wizard's 3.0 CLI version to run from the command line and attempt fixing my corrupt MBR issue. I'm running Windows 7 as admin, keep typing the ...
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What is the use of the [BOOT]/Bootable_NoEmulation.img file on several boot images?

I've seen a file called [BOOT]/Bootable_NoEmulation.img on several boot images, and always wondered what it's use is. Neither found a suitable magic number nor could Google help me so I ask here. ...
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How to restore a copy of an MBR back to the original HDD with Windows 7?

This topic is related to my questions 1 and 2, however as I've entered yet another phase of this complex issue, I must ask another standalone question: How can we copy back an MBR to an HDD with ...
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Is there a copy of the main MBR and MFT on a drive?

I'm talking about something like a backup copy located on a drive, in addition to the main. If there is, how would I be able to retrieve it and write the backup back to the main partition?
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Windows 8.1 in legacy mode(MBR partitions) how to install windows 10 in UEFI mode(gpt partitions)?

I have a laptop with windows 8.1 installed. My laptop supports UEFI but when i installed win 8.1 i converted GPT partitions to MBR and then installed win 8.1 as legacy(my bad, a long story). But now ...
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Software RAID setup on an MBR drive

In Mike Meyers' CompTIA A+ book when talking about different partitioning schemes, he says "A dynamic disk volume is still technically technically a partition, but it can do things a regular ...
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Recovering files when Windows 7 MBR has been corrupted

System Stats: Type: 64-Bit Desktop; OS: Windows 7 Premium; HD: Seagate Barracuda 750GB, S.M.A.R.T. Enabled. History: There is the complex situation I'm dealing with, I'll do my best to break it ...
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Hibernating made my computer unbootable

For some reason hibernation was not enabled on my Windows 7 install. So I enabled it, and then put the machine into hibernation. I use McAfee Safeboot on the machine (for data encryption). Upon ...
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Converting windows (bootloader) from mbr to gpt/uefi

I have windows 7 installed on a laptop on a small 160 Gb hard drive that has the MBR partition table. Now I would like to move it to a bigger disk, format it with GPT and multi-boot linux (Fedora). ...
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397 views

MBR vs GPT (Logical Block Addressing)

Going through MBR/GPT I'm a bit confused on the transition from MBR (2^32) to GPT (2^64). If you breakdown the history from CHS-to-LBA addressing: CHS (24Bits) - 8GB Limit (1979 - Introduced with ...
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How to Convert MBR HDD to GPT without data loss?

I tried to install a windows 10 DVD on my laptop with windows OS, after formatting the OS drive, I got the "MBR drive" error, so I should convert it to GPT, but I have no OS on laptop, and there is ...