How Do Rectify A Missing Or Corrupt Ntoskrnl Error

Another error message that you may occasionally get is a missing or corrupt ntoskrnl. Like most of these type of problems it is usually a simple case of copy an new copy from your XP CD to your hard drive.
1/ Place your Windows XP CD into your CD-ROM and Reboot your PC
2/ XP's setup program will automatically start and files will be loaded to memory
3/When you reach the Welcome to Setup screen choose the Repair option by pressing R
4/ This will open the Recovery Console
4/ The list of Windows installations will appear
5/ As you only have one installation on your PC you need to press the number which is relevant to your installations location. This, obviously will typically be 1
6/ You now need to enter your Administrator password to gain access. If you are using Windows XP Home edition the administrator password is blank by default so simply press Enter
7/ At the command prompt change to the drive letter that contains your CD
8/ Next type: cd i386
9/ The directory should now change to the i386 directory
10/At the command prompt you now need to type: expand ntkrnlmp.ex_C:\Windows\System32\ntoskrnl.exe
11/The relevant file should now be expanded and copies to the windows\system32 directory of your C:\ drive
12/ Finally, remove the Windows XP cd from your CD-ROM and, at the command prompt type: Exit