Hi, when i boot up my computer i get the message windows root system32 ntoskrnl.ext is missing or corrupt please reinstall file.

I have hirens boot cd 10.1 and was wondering how i can use this to repair this file so i can use my computer again, thanks

also my other computer has the error windows system32 config system on it and was wondering if anyone can help me fix that with the same hiren 10.1 boot cd, thanks in advance!

It possible that both are having file system problems. The easiest way to check is to boot the Recovery Console and run chkdsk as follows:

You are going to have to get into BIOS Setup on your computer to set the CD/DVD drive as the first bootable device, so you can then boot your XP CD.

How you do this varies with each manufacturer. Normally you press F1, F2, F10 or Del when you see the manufacturers logo. Often there is a clue somewhere on the screen when you boot normally telling you what key to press. Some computers (most newer ones) have a key you can press (often F12) to bring up the Boot Menu from where you can select the CD/DVD drive to boot from.

If you don't have an XP CD, download and create a bootable CD from the .iso file XP Recovery Console

You don't burn the iso file itself to CD., you create a CD from the iso file using your CD burning software. There is a good freeware burner called ImgBurn which will
do this.

Boot the CD and at the first opportunity, enter R to start the Recovery Console.
Next, choose which XP installation you want to login to. Normally this will be 1.
Lastly you will be asked for the Administrator password. Just press the Enter key as the Administrator does not have a password (unless you gave it one, then you would enter it).
From the command prompt, enter: chkdsk c: /r
Allow it to complete undisturbed. It can take an hour or more depending on the size of the hard drive.

Remove the CD, type exit and the computer will reboot. Hopefully that will have fixed the problem (corrupted file system).

Hi there,

This problem can occur due to corrupt or missing boot.ini file.

When I was facing with the same issue, I Got an easy solution from How to fix error NTOSKRNL missing or NTOSKRNL Corrupt.

Give it a try and hopefully you will get your problem solved.