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Err Msg During Setup: DISK READ ERROR OCCUREDArticle ID: 152517 - View products that this article applies to. This article was previously published under Q152517 SYMPTOMS
If you have Windows NT installed on the first primary partition formatted
as NTFS, and you chose to reformat the partition as NTFS during Setup to
start with a clean partition, the Windows NT setup program will reformat
the partition as FAT, copy files from the CD-ROM, and then try to reboot
the computer in GUI mode to continue the installation.
At this point the computer will either stop responding or display the
following error message:
DISK READ ERROR OCCURED.
If you boot from an MS-DOS disk and run scandisk C: you will encounter the following:
The media descriptor byte is invalid. FAT copies are not the same. Many crosslinked files. All directory entries were invalid. Trying to repair the partition does not resolve the corruption, nor does it allow the installation to resume. CAUSE
Windows NT always reformats the partition you want to install on using the
FAT file system, then performs a conversion to NTFS on the final re-boot
after Windows NT is finished setting up. When you choose to reformat the
system boot partition as NTFS, Setup is inadvertently writing the 16 sector
NTFS boot area over the top of the freshly formatted FAT drive after the
file copying portion of text mode setup is complete.
WORKAROUND
STATUS
Microsoft has confirmed this to be a problem in Windows NT versions 3.50
and 3.51 We are researching this problem and will post new information here
in the Microsoft Knowledge Base as it becomes available.
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