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.

learn more… | top users | synonyms

0
votes
1answer
17 views

Does the 2 terabyte limit for MBR apply to a partition or the entire disk?

This is really unclear from what I read. I have a 3TB secondary hard drive, but I want to install Windows 7 on that (for dual boot). I have an old BIOS so UEFI is not an option. I understand MBR only ...
0
votes
2answers
38 views

Booting with MBR in UEFI (No CSM mode at all)?

I'm asking here since I can't find a clear and definite answer to if it is possible to boot with an MBR partitioned hard drive in an UEFI-only environment. I've read this question but it is still ...
0
votes
0answers
25 views

Did I lose my data by converting HDD from GPT to MBR? [duplicate]

I tried to install Windows, which required an MBR disk instead of a GPT. I converted GPT to MBR using diskpart utility. After that all my logical disks disappeared and only one (with total amount of ...
-1
votes
1answer
22 views

UEFI boot and data disk

I'm on Windows 10 and I'm ready to convert to UEFI boot, but I want to know, if I need to have all my disks with GPT or only disk from which I will boot. Because my data disk is really full and ...
0
votes
1answer
58 views

Do I have to have my OS installed with UEFI to convert my system HDD from MBR to GPT without data loss?

So as of right now I have a PC with a BIOS-only mainboard (Gigabyte 775 - GA-P35-DS3) with which I installed Windows 10 64bit on my 4TB hard drive with MBR. Now I'd like to buy a new mainboard with ...
0
votes
0answers
70 views

Getting error: Windows cannot be installed to this disk. The selected disk is of the GPT partition style

I am trying to reinstall Windows 10 on my friends machine from bootable USB. Following is what I have done till now: I created bootable USB using Windows 10 ISO and Rufus with GPT Partition scheme ...
0
votes
0answers
22 views

Windows 8 install on MBR

I have a Notebook that dual-boots Arch Linux and Windows 8 via GRUB. After swapping hard drives, Windows couldn't boot anymore, and I've spent hours on fixing this to no avail. (I've cloned everything ...
-1
votes
0answers
51 views

How can I create a bootable usb flashdrive that works with UEFI and BIOS computers for installing Windows 8.1?

I manage a lab with a lot of computers: almost half of them are BIOS-MBR computers and the others are UEFI-GPT. All of them run Windows 8.1. As you know, you can't use for booting a mbr flashdrive ...
1
vote
1answer
37 views

How would I know if a hard drive was jeopardized by a power surge?

I have a hard drive, from which I have rebuilt the MBR and Boot Sector. I was able to recover the data. My client's computer and data were easily visible prior to a power surge in the home. She would ...
1
vote
0answers
33 views

HDD Stopped Responding

I have an external 500GB hard drive containing a WD Scorpio Black, used all as one partition, encrypted with BitLocker and runs very well. This morning I connected it to my PC, it asked for BitLocker ...
0
votes
3answers
68 views

Messed up my MBR, can't boot from hard drive

can you help me please? I messed up my boot partition and I don't really know how. I tried to install grub wherever I could and accidentally formatted MBR. Bootrec.exe /FixBoot doesn't work Ubuntu ...
0
votes
1answer
71 views

I created a Windows To Go hard drive and it requires legacy boot

I used AOMEI Partition Assistant Standard Edition 6.0 to create a Windows To Go hard drive (MBR, 4 partitions, Toshiba USB 3.0 v73600-H 2TB) Click for screenshot. I am able to boot to my hard ...
1
vote
1answer
62 views

Windows 10 vs Windows 7 GPT filesystem incompatibility?

Good evening, I've got a dual boot system with Windows 10 and Windows 7 installed on one HD, and my second HD is an empty one for storing multimedia and games. Both disks are formatted as GPT. I've ...
0
votes
0answers
26 views

Can rEFInd be forced to replace boot code in a MBR?

Is there a way to force rEFInd to replace the boot code in the MBR before preforming a BIOS boot of the Windows operating system on a Mac computer? I understand that if the first 440 bytes in the MBR ...
0
votes
0answers
20 views

Get correct Windows partition back in Grub

Model: HP Compaq Mini 32 bit. Device: Samsung Evo SSD 120 GB. OS: Dual boot --> Linux Mint 17.1 Xfce & Windows 7 Starter. TLDR: Fixed Grub + got Mint back using parted rescue; win7 reboots or ...
0
votes
0answers
43 views

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 ...
0
votes
1answer
180 views

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 ...
1
vote
2answers
97 views

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 ...
0
votes
2answers
85 views

convert logical to primary getting “the operation could not be completed there is no empty slot in mbr”

I have Sony VAIO with Windows7 premium 64-bit and I'm trying to get more free space for drive C -which has only around 8 Gigs free, while I had 48 Gigs free on drive D- so I was thinking of merging ...
0
votes
0answers
31 views

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). ...
-1
votes
1answer
58 views

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 ...
0
votes
1answer
294 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 ...
3
votes
3answers
400 views

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 ...
0
votes
0answers
13 views

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 ...
0
votes
0answers
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 ...
0
votes
0answers
56 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. ...
0
votes
0answers
17 views

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, ...
0
votes
0answers
42 views

Potential problems with Seagate DiskWizard when extending beyond 2TB with MBR

A bit of an oldy, but couldn't find an answer to my exact question. My motherboard doesn't support UEFI but I want to boot from my 4TB Hard Drive and use it all. I heard Seagate DiskWizard allows ...
3
votes
3answers
49 views

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 ...
1
vote
0answers
18 views

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 ...
0
votes
2answers
43 views

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 ...
3
votes
1answer
101 views

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 ...
1
vote
5answers
116 views

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 ...
0
votes
0answers
29 views

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 ...
0
votes
0answers
55 views

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.
0
votes
0answers
27 views

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 ...
0
votes
2answers
2k views

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 ...
0
votes
0answers
29 views

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 ...
0
votes
2answers
255 views

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 ...
2
votes
1answer
45 views

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 ...
0
votes
2answers
163 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 ...
0
votes
0answers
49 views

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 ...
0
votes
1answer
299 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 ...
0
votes
0answers
27 views

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 ...
0
votes
0answers
146 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 ...
0
votes
2answers
152 views

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. ...
0
votes
1answer
60 views

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 ...
3
votes
1answer
121 views

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?
1
vote
0answers
105 views

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 ...
0
votes
2answers
769 views

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 ...