Article ID: 173518 - View products that this article applies to.
This article was previously published under Q173518
You may receive the following error message as your computer restarts:
Stop: 0xC000012F STATUS_INVALID_IMAGE_NOT_MZ
The specified image file did not have the correct format, it did not have an initial MZ.
This error may also occur following installation of new drivers to the system, such as adding a new video driver, or is often seen during either an upgrade or new installation of Windows NT.
This error is caused by the system being unable to load a needed file because of the file being corrupted. This usually occurs during the file copy process, and is often because of a hardware malfunction. It may be a one-time occurrence, but often is a signal for the user to do a through examination of system hardware to determine what is causing the corruption.
NOTE: The parameter 0xc000012f may also be seen in conjunction with other Trap Codes such as 0x0000006b and is usually shown as the first parameter following the trap:
STOP 0x0000006b (0xc000012f, 0xxxxxxxxx, 0xxxxxxxxx,0xxxxxxxxx)
Because this trap code is caused by a corrupted file required to load Windows NT, and the trap screen does not always reference which specific file caused the problem, the best solution is usually basic trouble shooting.
It is recommended to have a good back up of anything on the computer that the user considers valuable before proceeding with the different procedures.
Windows NT was Already Installed and RunningIf the stop error occurred following a change in hardware drivers, press the space bar to select the Last Known Good option during startup, and then change the necessary components when the computer comes up.
Try selecting [VGA MODE] option from the boot menu, this will display the Windows NT system files on the screen as they are loaded and may give you a clue about which file is corrupt.
Use the Emergency Repair Disk to replace the missing or damaged driver file on the partition by following the procedure outlined in the following Microsoft Knowledge Base articles:
TITLE : Using an Emergency Repair Disk Created by Windows NT
TITLE : Replacing System Files Using a Modified Emergency Repair Disk
This will allow you to perform a system repair to replace the corrupted Windows NT system file.
If Performing an Initial Windows NT Installation or UpgradeIf the computer has MS-DOS or another operating system installed, copy the i386 directory from the Windows NT installation CD to C:\i386, and at a command prompt carry out the following command:
This often allows the installation to proceed, but if Windows NT will not install in this manner, you may want to consider the following options:
Article ID: 173518 - Last Review: November 1, 2006 - Revision: 2.1