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Monday, December 13, 2010

How to fix " NTLDR is Missing " in windows XP ( Repair / Restore Windows XP in 4 steps )

In windows XP sometimes we will see NTLDR is Missing press Ctrl+Alt+Del to restart.
http://i56.tinypic.com/ztj3x1.jpg

This occurs due to the following reasons.



1. Loose or Faulty IDE/EIDE/SATA hard disk drive cable.

2. New hard disk drive being added.

3. Corrupt NTLDR and/or NTDETECT.COM file.

4. Misconfiguration with the boot.ini file.

5. Corrupt boot sector / master boot record.

6. Seriously corrupted version of Windows.



In the first case replace the cable and check.

If the new hard disk inserted also has a windows operating system, it will give NTLDR error. Make sure that the new hard disk other than existing should not contain windows OS.

in the third case insert the windows XP installation CD and restart.

Press any key to boot from CD.

Windows XP Settup, Welcome Screen

Press R to enter into recovery console.
XP Recovery Console Installation Choice
Type 1 and press Enter. You'll then be prompted for the password of the Administrator account:
XP Recovery Console Administrator Password
And now you're in the Recovery Console.
XP Recovery Console at Prompt
The following instructions assume CD-ROM is labeled as drive D and the hard drive partition the windows installation is on is labeled as drive C. Replace the letters accordingly.

COPY D:\i386\ntldr C:\
COPY D:\i386\ntdetect.com C:\
EXIT

Press Y on keyboard if XP Setup asks for replace or rewrite the original files.

Restart the system...


If still problem persists again enter into recovery console using XP CD.
Type in CD .. to go up a directory.

http://tech.icrontic.com/images/draco/articles/repairing_windows_xp_in_eight_commands/xp_src_recurse.gif
Now type in the following 3 commands...
ATTRIB -H C:\\BOOT.INI
ATTRIB -R C:\\BOOT.INI
ATTRIB -S C:\\BOOT.INI
to remove the Hidden, System and Read Only flags of BOOT.INI file.
http://tech.icrontic.com/images/draco/articles/repairing_windows_xp_in_eight_commands/xp_src_attributes.gif


Now we can delete boot.ini file by using
DEL C:\\BOOT.INI
http://tech.icrontic.com/images/draco/articles/repairing_windows_xp_in_eight_commands/xp_src_delete.gif


Now enter

BOOTCFG /REBUILD
if you are “Sure you want to write a new bootsector to the partition C: ?” just hit “Y,”


If CPU is featuring Intel’s XD or AMD’s NX buffer overflow protection, you must also use /NOEXECUTE=OPTIN as an OS Load Option. Otherwise /FASTDETECT is enough as an OS Load Option when the rebuild process is finalizing. Do not set NOEXECUTE as a load option if you do not own one of these CPUs.
http://tech.icrontic.com/images/draco/articles/repairing_windows_xp_in_eight_commands/xp_src_rebuild.gif


Now restart the system...
If the problem still persists, Enter into Recovery Console from XP CD.


Type in CD .. to go up a directory.

http://tech.icrontic.com/images/draco/articles/repairing_windows_xp_in_eight_commands/xp_src_recurse.gif
Now type in FIXBOOT to write a new Windows boot sector to the system partition.


FIXBOOT command in the Recovery Console

Now type in FIXMBR to write a new master boot record, which is different than the Boot Sector written by FIXBOOT. A single hard disk can have several partitions, each which could be bootable with its own copy of Windows or another operating system. FIXBOOT writes the boot sector that appears within a specific Windows partition. FIXMBR writes the master boot record on the hard disk that is used, among other things, to locate all the partitions that may have bootable operating systems on them.

FIXMBR command in the Recovery Console
Enter Y if you are asked for any confirmation.

Now restart the system...

If the problem still persists restart the system with windows XP CD and press any key to boot from CD...
Now select the first option to set up Windows by pressing Enter.
A list of all the current installations of Windows XP will be displayed in the lower portion of the window. Use the arrow keys to select among them if you have more than one installation. Once the selection has been made, press the R key to begin the repair process.

Windows XP/2000 will appear to be installing itself for the first time, but it will retain all of your data and settings.
Enjoy...


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