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How to Fix Ntdetect Failed Error


NTDETECT, the full name of which is, is a component of Microsoft Windows NT operating systems that works on the x86 architecture. It's responsible for detecting basic hardware and gathering information to boot up the operating system. When NTLDR takes over control of booting process, NTDETECT will be invoked and hardware information is collected and transferred to ntoskrnl.exe, the Windows kernel. file is included in Windows XP, 2003 and Vista,


When you are booting up Windows system and if is deleted, damaged or corrupted, the boot process may not succeed, and the following error message will be given: "NTDETECT Failed". Sometimes, you probably have issues with the ntldr and boot.ini files as well.

ntdetect failed

2How to Fix NTDETECT Failed Error?

Solution 1: Use Windows Recovery Console

If you have a Windows Installation Disc at hand, it's easy to fix NTDETECT Failed issue. Do as follow:

1. Reboot computer and change boot sequence to make CD-Rom as the first boot device, insert Windows CD/DVD and restart again.

2. When the "Welcome to Setup" screen appears, press R to start the Recovery Console.

3. In Recovery Console, type the Administrator password (blank by default, so just press ENTER).

4. Execute following commands. Assuming the CD/DVD drive is D: and the system drive is C:. Change them according to your case.

copy d:i386 tldr c:

copy d:i386 c:

5. If an invalid boot.ini error message is prompted, you also need to create a boot.ini file by type in bootcfg /rebuild, and hit ENTER.

Add installation to boot list? (Yes/No/All) - Type Y.

Enter Load Identifier: - Type Windows XP Professional or Windows XP Home Edition for your selection in the boot menu.

Enter OS Load options: - Leave it blank, just press ENTER].

6. Take out the CD and type exit before pressing ENTER, and reboot the computer.

Solution 2: Boot up Any Computer and Fix Problems

For users who have no Windows Installation Disc or netbook users who usually have no CD-Rom,

1. Create bootable CD/DVD or usb drive with Liveboot on a booted Windows computer.

2. Insert the CD, DVD or usb drive, and reboot your computer.

3. Choose "Boot from LiveBoot" on the Boot Menu to enter the virtual system.

4. Select "Windows Recovery" and click Boot File Recovery to fix failed error.

boot file recovery

5. When Boot File Recovery complete, restart your computer.

6. If no other issue, the NTDETECT Failed error should be fixed, and you can then see your familiar desktop.

Tips: Several problems may occur when downgrade from Windows Vista to Windows XP. Therefore, you are highly recommended to wipe clean the hard drive before installing Windows XP. And you'd better prepare all hard drivers at hands because you may find out some drivers only support Windows Vista.

Know more about Wondershare LiveBoot Boot CD

3How to recover lost data resulted from NTDETECT Failed Error

The NTDETECT Failed Error might often result in data loss on your computer. And wrong opeartions to fix the NTDETECT Fail Error are also a common reason for accidental data deletion or even formatted hard drive. When such problem occurs, you`ll probably need a powerful data recovery tool to restore all the lost files.

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