Windows wont boot up file missing

kingsam · July 10th, 2004

When starting my pc up(WINDXPRRO),it says windows root/system32/ntoskrnl.exe is missing or corrupt please reinstall this file.Cant get into safe mode or anything,tryed the recovery console using the digital webcast.com tutorial to try & fix it but it still didnt work so i had to format & reinstall xp,any help incase this happens again.
Many thanks

**rushm001** · July 10th, 2004

Try

Insert and boot from your WindowsXP CD.

At the first R=Repair option, press the R key

Press the number that corresponds to the correct location for the installation of Windows you want to repair.
Typically this will be #1

Change to the drive that has the CD ROM.

CD i386

expand ntkrnlmp.ex_ C:\Windows\System32\ntoskrnl.exe

If WindowsXP is installed in a different location, just make the necessary change to C:\Windows

Take out the CD ROM and type exit

Taken from http://www.onecomputerguy.com/windowsxp_tips.htm

**Lee** · July 10th, 2004

You could have just reinstalled xp from booting to cd rom and following on screen steps.

Then updated via windows update or downloading autopatcherxp from www.autopatcher.com or directly in downloads section from here http://www.autopatcher.com/downloadxp.html

kingsam · July 10th, 2004

Hi rushm001,can you explain exactly what i have to type cause im a bit confused mate.Whereabouts in suffolk are you cause thats where i live!

**Lee** · July 10th, 2004

Rush you got a fan there! I won't tell him you support Ipswitch, he he.

kingsam · July 10th, 2004

Hey lee,i also support IPSWITCH!!! LOL

**yoyo** · July 10th, 2004

Rushm001 why did you advice to extraxt ntkrnlmp.ex_ as ntoskrnl.exe? Ntkrnlmp.exe is the multiprocessor kernel.

You need the kernel version that matches your hardware and servicepack level.

There is a backup of ntoskrnl.exe inside the \Windows\Driver Cache\i386 folder.

If you have installed one of those Windows updates that replace the kernel, it is directly in this folder.
The command at the recovery console would be
copy "C:\Windows\Driver Cache\i386\ntoskrnl.exe" C:\Windows\system32

If you haven't applied one of these updates but have Service Pack 1 installed the ntoskrnl.exe is inside the sp1.cab file.
The command in this case
expand "C:\Windows\Driver Cache\i386\sp1.cab" /f:ntoskrnl.exe C:\Windows\system32

In case you don't even have SP1 installed, replace sp1.cab in the command by driver.cab.

**Lee** · July 10th, 2004

Originally Posted by kingsam

Hey lee,i also support IPSWITCH!!! LOL

Rush don't he loves Delia Smith and likes dressing up in a Bird type Footy shirt!

manfromyard · July 30th, 2004

its easier 2 repair winxp , using the second repair option.

Genman · December 27th, 2004

Originally Posted by kingsam

When starting my pc up(WINDXPRRO),it says windows root/system32/ntoskrnl.exe is missing or corrupt please reinstall this file.Cant get into safe mode or anything,tryed the recovery console using the digital webcast.com tutorial to try & fix it but it still didnt work so i had to format & reinstall xp,any help incase this happens again.
Many thanks

Hi all - I have a friend who has this exact problem but it is compounded some. He has LOST his OS disk. He was running Windows XP Home edition. He wants to update to the Pro version and has already purchased the disk. He doesnt mind if I wipe the drive to get him going so I thought I would do that. So my question is two fold. First - Can I get this system to boot on the new Pro version disk in the CD drive? If so - Where is that command in the bios? Second - what is the command to wipe the C drive once I get the system up? Any help would be appricated..
Thanks
John

**muzikool** · December 27th, 2004

One of the screens in the BIOS will have a boot order that you can change. If you change it to CD-ROM first, then the PC will boot straight to the XP disc when you start up. Once the CD starts loading, it will give you some installation options. Among those are options to create or delete a partition, and reformat an existing partition or format a new partition. What I find best is to
1) delete the existing partition (assuming there's only one)
2) create a new partition
3) format the new partition with NTFS
4) install XP on the newly formatted partition
After that, you'll be on your way to installing the OS.

July 10th, 2004	Top \| #1
kingsam OSNN Addict Joined: December 2001 Location: UK Posts: 130 Reputation: 0 Power: 129	Windows wont boot up file missing When starting my pc up(WINDXPRRO),it says windows root/system32/ntoskrnl.exe is missing or corrupt please reinstall this file.Cant get into safe mode or anything,tryed the recovery console using the digital webcast.com tutorial to try & fix it but it still didnt work so i had to format & reinstall xp,any help incase this happens again. Many thanks

July 10th, 2004	Top \| #2
rushm001 In the beginning...... Joined: September 2002 Location: Norfolk, UK Posts: 3,480 Reputation: 1370 Power: 165	Try Insert and boot from your WindowsXP CD. At the first R=Repair option, press the R key Press the number that corresponds to the correct location for the installation of Windows you want to repair. Typically this will be #1 Change to the drive that has the CD ROM. CD i386 expand ntkrnlmp.ex_ C:\Windows\System32\ntoskrnl.exe If WindowsXP is installed in a different location, just make the necessary change to C:\Windows Take out the CD ROM and type exit Taken from http://www.onecomputerguy.com/windowsxp_tips.htm

July 10th, 2004	Top \| #4
kingsam OSNN Addict Joined: December 2001 Location: UK Posts: 130 Reputation: 0 Power: 129	File missing Hi rushm001,can you explain exactly what i have to type cause im a bit confused mate.Whereabouts in suffolk are you cause thats where i live!

July 10th, 2004	Top \| #6
kingsam OSNN Addict Joined: December 2001 Location: UK Posts: 130 Reputation: 0 Power: 129	file missing Hey lee,i also support IPSWITCH!!! LOL

July 10th, 2004	Top \| #8
Lee OSNN Proxy Joined: January 2004 Location: Kings Hill, West Malling, Kent, England. Posts: 3,330 Reputation: 1020 Power: 145	Originally Posted by kingsam Hey lee,i also support IPSWITCH!!! LOL Rush don't he loves Delia Smith and likes dressing up in a Bird type Footy shirt!

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July 10th, 2004	Top \| #3
Lee OSNN Proxy Joined: January 2004 Location: Kings Hill, West Malling, Kent, England. Posts: 3,330 Reputation: 1020 Power: 145	You could have just reinstalled xp from booting to cd rom and following on screen steps. Then updated via windows update or downloading autopatcherxp from www.autopatcher.com or directly in downloads section from here http://www.autopatcher.com/downloadxp.html

July 10th, 2004	Top \| #5
Lee OSNN Proxy Joined: January 2004 Location: Kings Hill, West Malling, Kent, England. Posts: 3,330 Reputation: 1020 Power: 145	Rush you got a fan there! I won't tell him you support Ipswitch, he he.

July 10th, 2004	Top \| #7
yoyo _________________ Joined: July 2002 Posts: 1,557 Reputation: 160 Power: 136	Rushm001 why did you advice to extraxt ntkrnlmp.ex_ as ntoskrnl.exe? Ntkrnlmp.exe is the multiprocessor kernel. You need the kernel version that matches your hardware and servicepack level. There is a backup of ntoskrnl.exe inside the \Windows\Driver Cache\i386 folder. If you have installed one of those Windows updates that replace the kernel, it is directly in this folder. The command at the recovery console would be copy "C:\Windows\Driver Cache\i386\ntoskrnl.exe" C:\Windows\system32 If you haven't applied one of these updates but have Service Pack 1 installed the ntoskrnl.exe is inside the sp1.cab file. The command in this case expand "C:\Windows\Driver Cache\i386\sp1.cab" /f:ntoskrnl.exe C:\Windows\system32 In case you don't even have SP1 installed, replace sp1.cab in the command by driver.cab.

July 30th, 2004	Top \| #9
manfromyard YARDMAN Joined: January 2004 Location: Brooklyn,NY Posts: 5 Reputation: 0 Power: 102	its easier 2 repair winxp , using the second repair option.

December 27th, 2004	Top \| #10
Genman OSNN Junior Addict Joined: December 2004 Posts: 4 Reputation: 0 Power: 0	Originally Posted by kingsam When starting my pc up(WINDXPRRO),it says windows root/system32/ntoskrnl.exe is missing or corrupt please reinstall this file.Cant get into safe mode or anything,tryed the recovery console using the digital webcast.com tutorial to try & fix it but it still didnt work so i had to format & reinstall xp,any help incase this happens again. Many thanks Hi all - I have a friend who has this exact problem but it is compounded some. He has LOST his OS disk. He was running Windows XP Home edition. He wants to update to the Pro version and has already purchased the disk. He doesnt mind if I wipe the drive to get him going so I thought I would do that. So my question is two fold. First - Can I get this system to boot on the new Pro version disk in the CD drive? If so - Where is that command in the bios? Second - what is the command to wipe the C drive once I get the system up? Any help would be appricated.. Thanks John

December 27th, 2004	Top \| #11
muzikool Act your wage. Joined: December 2001 Location: Texas, USA Reputation: Yes, please. Posts: 7,626 Reputation: 2900 Power: 232	One of the screens in the BIOS will have a boot order that you can change. If you change it to CD-ROM first, then the PC will boot straight to the XP disc when you start up. Once the CD starts loading, it will give you some installation options. Among those are options to create or delete a partition, and reformat an existing partition or format a new partition. What I find best is to 1) delete the existing partition (assuming there's only one) 2) create a new partition 3) format the new partition with NTFS 4) install XP on the newly formatted partition After that, you'll be on your way to installing the OS.

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