Today the topic is "How to fix MBR in Windows XP, Vista and window 7 ?".This
article will help you to understand the MBR and its easy reapir.This
article is also related to Security,You may wanna ask that , How ? ...
Thats Because bad hackers also make such virus,which can delete your MBR
records to corrupt your window... Now you should know that How you can
Repair it within 3-4 minutes.So lets start with ...
What is the MBR ?
If, for any reason, the MBR becomes damaged or corrupt, then the operating system will be unable to load.Reason can be anything like :- Due to a Virus,Due to some malware Software or may be due to sudden power switch off.You will normally see error messages like:
1.) Error loading operating system
2.) Missing operating system
3.) Invalid partition table
These messages are definitely not fun,Especially if you are not familiar with computers.Most people would automatically assume their computers are dead ! However, that’s not true. Being in IT myself, these errors are actually referably to other types of Windows errors. Why ? Well, it’s actually fairly easy to fix the Master Boot Record ( MBR ) in XP and Vista. All you have to do is load up the Recovery Console and run a simple command. All of your data, applications, settings, etc are still intact on the drive and once the MBR is fixed, the computer will load normally.
So how can you repair your damaged MBR ?
Here are the steps to follow explained:-
1.) First, restart your computer with the Windows XP setup disk in the CD drive. If you don’t have your original disk, borrow one or download a ISO image from a torrent site.
2.) When prompted, boot from the CD drive by pressing any key. If Windows loads automatically, you will first have to enter the BIOS setup and change the order of the boot devices to start with the CD drive.
3.) Once the setup loads, you will see the option to press R to repair a Windows installation.
4.) Once the Recovery Console loads up, you will have to type in a number that corresponds to your Windows installation. This is normally just 1. Press Enter and then type in the Administrator password.
5.) Now at the prompt, type in fixmbr. Your damaged MBR will now be replaced with a new master boot record and your computer should now be able to boot properly. Note that you may also want to run the fixboot command to repair the boot sector with a new one.Also, make sure you only use these commands on a system with one operating system installed. If you have more than one operating system installed, fixmbr and fixboot could mess up everything.
Fix MBR in Vista
In Vista, the procedure to fix the master boot record is a bit different. You have to start up Vista in the Recovery Environment and then run the bootrec command. Here’s how...
1.) First, load up the Windows Vista disc in your drive and press any key to boot from the disc.
2.) Choose the language, time, currency, etc and click Next. Now click on Repair Your Computer.
3.) Choose the operating system to repair and click Next. When the System Recovery Options dialog comes up, choose the Command Prompt.
4.) Now type bootrec.exe and press Enter. This will rebuild the boot configuration data and hopefully fix your problem. You can also run the command with switches to fix just the master boot record (/fixmbr), the boot sector (/fixboot), or rebuild the entire BCD (/rebuildbcd).
Fix MBR in Window7
If you are still having trouble with loading Windows,post a comment and I’ll see if I can help !
Enjoy Every article on ICA ! Keep replying,because for me your Response is too much Important.
What is the MBR ?
Generally
speaking the processor of your PC is yet to begin its processing once
you switch it on. When your system memory is empty the processor doesn’t
really have anything that it can execute. Actually your processor has
no idea where it is.
The
manufacturers of BIOS and other chip makers have developed a way in
which you can ensure that your PC can boot regardless of the BIOS in the
machine. This will allow your processor to start executing its process
from the same place every time it is switched on. That place is recorded
as FFFF0h.
Every
hard disk also has to have a consistent starting point. This is where
all the key information is stored regarding the disk. The particulars of
this information could include the partitions and their types etc. The
BIOS also needs a place where it can load the initial boot program which
will start the process known as master boot record. It can be referred
to as master boot sector, boot sector or simply MBR.
The
exact consistent location of the master boot record is cylinder 0, head
0 and sector 1 which is the first available sector on the disk. This is
the place where the BIOS will look when it begins to boot the machine.
It will find all the instructions and information regarding the way in
which the disk has to be booted and how the operating system should be
loaded.
The
master boot record consists of three main structures. The first of
these is the Master Partition Table. This is a small table that contains
all the descriptions regarding the partitions on the hard disk. Only
the information that describes four partitions can fit in the master
partition table. This is the reason a hard disk is known to have only
four true partitions. The partition marked active is the one which is
used for booting.
The
second most important structure is the Master Boot Code. The initial
program that the BIOS has to load and execute in order to start the boot
process is contained in the master boot record. The control is
eventually transferred to that particular hard disk partition which
contains the boot program which has to be used for booting the computer.
Serious
data loss can occur if the master boot record is damaged or corrupted
in any way. This contains extremely important information and the user
will suffer grievous consequences if this information is lost. Most
viruses are targeted at the master boot code because this is the first
program that is executed when a PC is switched on.
Why MBR get Damaged ?If, for any reason, the MBR becomes damaged or corrupt, then the operating system will be unable to load.Reason can be anything like :- Due to a Virus,Due to some malware Software or may be due to sudden power switch off.You will normally see error messages like:
1.) Error loading operating system
2.) Missing operating system
3.) Invalid partition table
These messages are definitely not fun,Especially if you are not familiar with computers.Most people would automatically assume their computers are dead ! However, that’s not true. Being in IT myself, these errors are actually referably to other types of Windows errors. Why ? Well, it’s actually fairly easy to fix the Master Boot Record ( MBR ) in XP and Vista. All you have to do is load up the Recovery Console and run a simple command. All of your data, applications, settings, etc are still intact on the drive and once the MBR is fixed, the computer will load normally.
So how can you repair your damaged MBR ?
Here are the steps to follow explained:-
1.) First, restart your computer with the Windows XP setup disk in the CD drive. If you don’t have your original disk, borrow one or download a ISO image from a torrent site.
2.) When prompted, boot from the CD drive by pressing any key. If Windows loads automatically, you will first have to enter the BIOS setup and change the order of the boot devices to start with the CD drive.
3.) Once the setup loads, you will see the option to press R to repair a Windows installation.
4.) Once the Recovery Console loads up, you will have to type in a number that corresponds to your Windows installation. This is normally just 1. Press Enter and then type in the Administrator password.
5.) Now at the prompt, type in fixmbr. Your damaged MBR will now be replaced with a new master boot record and your computer should now be able to boot properly. Note that you may also want to run the fixboot command to repair the boot sector with a new one.Also, make sure you only use these commands on a system with one operating system installed. If you have more than one operating system installed, fixmbr and fixboot could mess up everything.
Fix MBR in Vista
In Vista, the procedure to fix the master boot record is a bit different. You have to start up Vista in the Recovery Environment and then run the bootrec command. Here’s how...
1.) First, load up the Windows Vista disc in your drive and press any key to boot from the disc.
2.) Choose the language, time, currency, etc and click Next. Now click on Repair Your Computer.
3.) Choose the operating system to repair and click Next. When the System Recovery Options dialog comes up, choose the Command Prompt.
4.) Now type bootrec.exe and press Enter. This will rebuild the boot configuration data and hopefully fix your problem. You can also run the command with switches to fix just the master boot record (/fixmbr), the boot sector (/fixboot), or rebuild the entire BCD (/rebuildbcd).
Fix MBR in Window7
- Insert your Windows 7 installation DVD in DVD drive.
- Restart your computer and boot from your DVD drive (to do this you firstly need to go to your BIOS and set your PC to bootup from the DVD drive).
- When asked, boot from the DVD by pressing F10 or any key on your keyboard.
- Now, check your Language, Time, and Keyboard Input in the proper section and press the Next button.
- Now click on Repair Your Computer to gain access to the System Recoverywindow.
- Click Command Prompt.
- Type one of these following commands and hit Enter:
- bootsect /nt60 C:\ (to type if your operating system is installed in C: Of course you can change C: with the word of the partition where your OS is installed)
- bootsect /nt60 SYS (to use if the first command doesn’t work)
- bootsect /nt60 ALL (to use if the above commands do not work)
- Once done, eject the disc and restart your computer for the change to take effect.
If you are still having trouble with loading Windows,post a comment and I’ll see if I can help !
Enjoy Every article on ICA ! Keep replying,because for me your Response is too much Important.
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