Microsoft KB Archive/222996

= "Disk Read Error Occurred" when converting boot drive to NTFS =

Article ID: 222996

Article Last Modified on 2/24/2007

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APPLIES TO


 * Microsoft Windows 2000 Server
 * Microsoft Windows 2000 Advanced Server
 * Microsoft Windows 2000 Professional Edition
 * Microsoft Windows NT Server 4.0 Standard Edition
 * Microsoft Windows NT Workstation 4.0 Developer Edition
 * Microsoft Windows NT Server 4.0 Enterprise Edition

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This article was previously published under Q222996



SYMPTOMS
After you successfully install Windows NT on a system partition that uses the FAT16 file system and then convert that partition to the NTFS file system, you may receive the following error message when you restart your computer:

DISK READ ERROR OCCURRED

This may occur even after an apparently successful conversion of a FAT16 drive in an extended partition or on a non-boot partition to NTFS.

If you then view the partition information using the MS-DOS Fdisk tool, the active partition may be reported as type HPFS.



CAUSE
This behavior can occur if the the computer's CMOS settings for the hard disk are incorrect. For example, the disk may be set to Normal in the CMOS, when it should be set to Autoselect or LBA.



RESOLUTION
Select the correct CMOS setting for the drive before partitioning and formatting the drive and installing Windows NT. For information about setting your computer's CMOS settings, please refer to your computer's documentation or manufacturer.

Keywords: kbenv kberrmsg kbprb KB222996

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