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Questions tagged [bootsector]

The bootsector is located on bootable disks such as hard drives, CDs and floppy disks. It is loaded by the BIOS and in turn loads the operating system. It is frequently a target for viruses.

4 votes
4 answers
42k views

Restoring MBR, partition table, and boot sector of memory card without data loss ("USBC")

Abstract I have a FAT32 memory card that when inserted into a computer causes Windows to prompt to format it. The card is definitely not supposed to be blank and has a bunch of files on it. Symptoms ...
Synetech's user avatar
  • 69k
3 votes
2 answers
3k views

How do I fix a Windows XP bootloader error when BOOTCFG, FIXBOOT, and FIXMBR do nothing?

I recently replaced a faulty hard drive with two hard drives that I then raided (1) together and installed Windows XP on about a week ago. Since then, I have always received this error: Windows could ...
NobleUplift's user avatar
  • 1,615
8 votes
5 answers
2k views

How to write a localized NTFS boot sector?

Little unknown fact: NTFS boot sectors come in different languages. They can say "BOOTMGR is missing" and "Press Ctrl+Alt+Del to restart", but they can also say the same thing in other languages. This ...
Massimo's user avatar
  • 2,639
6 votes
2 answers
8k views

Boot Signature - BIOS

I understand that the BIOS is in ROM, and the manufacturer "typically" designs it to point to the first sector of the "active" storage device's first sector or CHS (0,0,1)*physical and CHS (0,0,0)*...
Jordan Davis's user avatar
5 votes
1 answer
20k views

Recover Lost NTFS Partition With Corrupted Boot Sector

Is there a way to recover a lost NTFS partition with a corrupted boot sector ? The backup boot sector is also corrupted. I know that the NTFS partition used to start in sector 551585791.
Elmo's user avatar
  • 14.7k
2 votes
2 answers
19k views

Cannot access disk, partition table broken

I was so dumb, to turn of the power on my Readynas Ultra 4 when it was installing the disk (3TB WD Green), I had no time to wait for it as I was going to return it (It was to damn noisy) The disk ...
user1217169's user avatar
1 vote
1 answer
568 views

Does the fixmbr command repair the Master Boot Code only or it repairs the Master Partition Table, too?

I know there all kinds of programs out there that advertise fixing the MBR, especially Windows. The Master Boot Record consists of the Master Boot Code and the Master Partition Table, correct? But I ...
user301234's user avatar
1 vote
1 answer
3k views

Creating a bootable CD with custom boot sector

I was interested in learning how to create an operating system from scratch, and I found this guide: http://www.cs.bham.ac.uk/~exr/lectures/opsys/10_11/lectures/os-dev.pdf. At page 4 it is explained ...
brouwer89's user avatar