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 exactly does TrueCrypt work

I have some questions about how TrueCrypt and other Encryption Software work. TrueCrypt overrides the Bootcode in the MBR. Is there any other TrueCrypt Code on the disk which is not encrypted (Chain ...
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Booting Windows and Linux across two physical drives

I'm trying to get Windows 7 and Kali Linux bootable on an old laptop, but there are a few considerations that are making it difficult: 1) Windows 7 is on an SSD, while I installed Kali on the ...
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25 views

Grub Rescue upon attempting to reinstall WIn8.1 on Msata

New device and not dual boot as far as I am aware. New clean install of win 8.1 was compromised. Intel provided a new device. Upon attempting to reinstall 8.1, it would not allow installation onto ...
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2answers
47 views

How to overwrite 0 sector under Windows XP?

Is there any built in Windows XP command or other utility which will let me overwrite sector 0, so the OS will be non-bootable?
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1answer
6k 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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2answers
25 views

do fixmbr and fixboot change the list of oper. systems on start?

I have added new components in my computer and now I cannot start window 7, but I can Ubuntu, system repair cannot fix the problem. Then I read this I want to try these commands: bootrec /fixmbr ...
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1answer
85 views

Windows 10 Not Booting due to Boot Device not found

I just upgraded from Windows 8.1 to Windows 10 successfully. I think I made a mistake of formatting the old Window 8.1 recovery partition (which was not needed anymore). This was done via the Disk ...
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1answer
65 views

Changing System Drive from GPT to MBR

I currently have an Acer Laptop running Windows 10. My system drive currently has a GUID Partition Table (GPT) but I want to convert it to MBR Partition Table. Doing this wont be a problem as I found ...
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5k views

How to fix Windows 10 boot loader from Windows

I installed Ubuntu on system that has Windows 10 installed. I can boot to Windows or Ubuntu normally using GRUB. I want to delete Ubuntu partition but first I must restore Windows 10 MBR. Here ...
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2answers
501 views

No free mbr slots while there should be

I have three partitions on my hard drive. including the system reserved partition, there are 4 Primary partitions and I cant have any more. But I want to have one 110GB Primary partition.(I want to ...
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0answers
44 views

Windows 7 installation - setup was unable to create a system partition or locate an existing partition

I am trying to install Windows 7 from a bootable USB drive. I encountered the following error after selecting the partition to install Windows on: Setup was unable to create a system partition or ...
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1answer
41 views

Accidentally deleted Windows 7 Boot sector / MBR

Accidentally run the following on system drive instead of USB. OS: Windows 7. 1 system partition and 1 unformatted partition. Now still haven't rebooted while writing this. On C disk root can see ...
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2answers
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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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4answers
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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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0answers
31 views

My harddrive partitions are lost during attempting to install centOS 6.6. How to get back?

I had a windows 7 installation. I wanted to dual boot with centOS. So I separated a space for centOS and created root and swap areas. Then I installed centOS 6.6 normally. But it was not dual ...
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2answers
3k 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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155 views

Upgrade Windows 7 to Windows 10 GUID MBR

I have a Windows 7 Ultimate x64 machine with a UEFI/SecureBoot capable BIOS. How can I upgrade to Windows 10 and also utilize the UEFI/SecureBoot capability since my current Windows 7 installation ...
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2answers
127 views

Convert disk with OS from GPT to MBR

I'd like to know if it's possible to change disk partitioning standard from MBR to GPT for a disk with OS on which I do that, without loosing the OS. I have windows 7 and want to install side by side ...
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1answer
24 views

How do I identify & fix a defunct MBR entry on a remotely-admin'd Win2008 Server?

My 1&1 Winserver had a disk replaced, and I managed to rebuild the RAID so I have once again two synched disks. The trouble is whenever the server is rebooted it seems to be still trying to boot ...
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1answer
35 views

Can a >2TB hard (GPT) drive be used as non-booting data drive on a non-UEFI board?

Our workstation can only boot from MBR max. 2TB hard drive. The BIOS cannot be changed to UEFI mode by firmware update or similar. We are running Win Server 2012 R2. Can we use a 2TB hard drive ...
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31 views

Why does GParted make my flash disk bootable? If not malware then what?

I did sudo dd if=/dev/zero of=/dev/sda where /dev/sda is my flash disk. /dev/sda was all zeros after this. Then I created a partition table with GParted on the flash disk. I made no other changes. Now ...
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2answers
140 views

How to boot into a Linux, non-primary partition if Windows bootloader is on the MBR

I have Windows 8.1 installed in legacy mode/BIOS mode (ie: Not UEFI at all). Windows 8.1 is installed in the primary partition (ie: first). I (intend to) have linux installed in a second partition on ...
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2answers
87 views

How to repair a Windows7 boot sector on a secondary hard disk? [closed]

I am trying to rescue a damaged Windows7 here. Unfortunately, its boot record is corrupt (but its partition table is okay, only its boot code is bad). I've put its hard disk into a working Windows ...
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416 views

3TB drive on BIOS system

I have a HP Proliant microserver gen 8 on which I am planning on installing Debian. I was thinking of setting up a raid-1 configuration through the built in raid controller using two Western Digital ...
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Repair Windows 7 MBR with Hiren's Boot CD

I would like to repair my Windows 7 MBR using Hiren's Boot CD 15.1. I want to know the generic method, using this CD, to fix an MBR that is hypothetically "toast". This hypothetical HD is as ...
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220 views

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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Copy the contents of one partition to another partition hardrive

if i write this command in linux "dd if=/dev/sda1 of=/dev/sda2" it will copy the whole /dev/sda1 partition bit by bit to /dev/sda2 ......is there any way in WINDOWS not in linux that i can just only ...
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44 views

Use 4TB partition with old NTFS-3G which doesn't support GPT and RAID

I've a D-Link Router (2750U) which has a USB port and FTP Server. I've also a 4TB External H.D.D which I want to use as one partition with this Router as my home cloud. I don't want to split this ...
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227 views

Unable to format partitioned 32 GB micro SD card

I am unable to format my 32 GB micro SDHC card after I made two partitions on it. First partition is FAT32. Second is 4 GB ext3. Now I am unable to format my card and delete partitions on it. It ...
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63 views

How can I create a partition in a the GPT formated drive on OS X, which then results as a GPT partition and not MBR partition?

Looking around on how to install windows 8 or 10 on bootcamp I got the famous error from windows installer telling me I need a drive formatted as GPT an not as MBR. Actually I can't understand why ...
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53 views

Operating system not found. MBR possibly damanged

I get a can't find operating system message when starting my laptop. I was able to boot into the Windows 7 recovery tools loaded onto a USB. Using diskpart, I noticed my partitions show RAW as the ...
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39 views

Can Linux OS Boot off MBR in Native UEFI?

While UEFI & GPT go together, I was wondering if Linux can be instilled and boot off MBR Partition type while in Native UEFI Mode?
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How to boot Win 7 after uninstall partition MBR or GPT of Win 8 PC

i have a ASUS Laptop (windows 8.1). Now i already deleted windows 8 Operating System. now can't Install windows 7 Operating System. after selested partition disk have message "can't install".. So can ...
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1answer
42 views

4TB GPT drive is raw

Let me give some background first before I get into the issue. A few days ago my PC died and after an hour of troubleshooting I finally confirmed that it was in fact the SSD, so I ordered a new. This ...
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2answers
239 views

Overwrote Bitlocker MBR

I'm not sure exactly how I overwrote it, but I was writing a floppy image to a floppy disk (using a USB floppy drive), and somehow I inadvertently wrote the floppy disk to my primary hard disk which I ...
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2answers
132 views

How to delete a OS from dual boot system without harming other one? [closed]

If there is a dual boot system ‘Windows-Linux’ or ‘Windows-Windows’, I mean in one HDD there are ‘a Windows 8.1 partition and a Windows 7 partition’ or ‘a Windows 8.1 partition and a Ubuntu ...
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0answers
139 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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115 views

Can't write partition Table

I own an Asus UX31A Prime - 8GB Ram and SSD 256GB - SanDisk. It started about two weeks ago after hibernation (Windows). The problem is that is stocks on boot/resume. I search around it by trying to ...
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380 views

Restore MBR on a Toshiba Satellite Click Mini laptop with Windows 8 after uninstalling Debian 8 using EasyBCD

The Toshiba Satellite Click Mini is a special computer, it doesn't have any CD/DVD drive and the BIOS is special and very limited, it looks like this: When I select "Enter Setup" I have a menu like ...
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23 views

Why does Windows keep resetting BCDEdits

I have this Windows 7 machine. System Reserve is C: and main partition with OS files is D:. I used BCDEdit to set {default} from the C: to the D: rebooted 3 times and no issues. A day latter it got ...
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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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1k views

Recover truecrypt partition without MBR + recovery disk?

I destroyed my mbr and have no truecrypt rescue disk. However, I do know my password and my encryption setup (e.g. hashing functions and ciphers used). This happened after an upgrade to version 7.0a ...
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2answers
7k views

GParted errors on MBR Disk, Claims it's GPT. (It's mistaken, but why?)

It's very tempting for me to go on a rant here about GParted and Linux, but I'll do my best to avoid it. :) Question: Why does GParted claim that my disk is corrupted and GPT, whereas the Disk ...
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400 views

There is no “Convert MBR to GPT” option in EaseUs Partition Master

I want to convert my disk to GPT to install windows 10. I found this solution to convert it: http://www.partition-tool.com/resource/GPT-disk-partition-manager/convert-mbr-disk-to-gpt-disk.htm But in ...
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258 views

Windows 8.1 freeze on startup - Dell Inspiron 15 (7537)

I have a huge problem. (Sorry for my english) The day befoe yesterday I had a Dell Update shown up on my taskbar, I approved it, it ran, and after that I could not turn my laptop on. When I try to ...
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36 views

External USB disks and logical sector size

I have a WD Green 3.0TB in an external USB enclosure. I wanted to replace the disk with a Green 6.0TB. The USB enclosure is usually connected to a device that only understands FAT32 and MBR, so ...
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1answer
41 views

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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7k views

How to fix possibly wiped MBR after centOS install?

I think I have messed this one up royally... I have done a clean install of centOS 5.6 (x86_64) on my system. I got through the installation process successfully and rebooted. Now I am greeted with a ...
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3answers
340 views

Installing Red Hat based OS on mbr disk

I currently have installed Windows XP and Linux Mint 17 on my laptop. My disk is MBR type because of Windows XP. I have installed linux mint without any problems, but now I am trying to install Red ...
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119 views

PC asks to format Veracrypt Volume

I have a Veracrypt encrypted non-system partition on an external hard drive. The hard drive is GPT-based. On my previous MBR-based hard drives, I used Diskpart and the command SET ID=64 to prevent ...