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- DOCUMENT:Q103488 04-NOV-1993 [W_NT]
- TITLE :IBM ThinkPad 700c and 720c Must Boot Windows NT Using FAT
- PRODUCT :Windows NT
- PROD/VER:3.10
- OPER/SYS:WINDOWS
- KEYWORDS:
-
- -----------------------------------------------------------------------
- The information in this article applies to:
-
- - Microsoft Windows NT operating system version 3.1
- - Microsoft Windows NT Advanced Server version 3.1
- -----------------------------------------------------------------------
-
- When you install Windows NT on an IBM ThinkPad 700c or 720c portable
- computer and you attempt to convert the boot partition to the NTFS
- file system, you may receive the following error message after
- rebooting the computer:
-
- FAT structure in area required by NTFS
- Bad Sector in required areas of volume.
-
- Before you install Windows NT on an IBM ThinkPad 700c or 720c
- portable, an ABIOS patch must be applied. After these files are
- applied, you will be unable to convert the file system of the boot
- drive to NTFS.
-
- This is by design. Windows NT refuses to convert the volume to NTFS
- because the existing BIOS Parameter Block (BPB) conflicts with the
- disk geometry information returned by the file system driver.
-
- Conversion requires these two sources of information about disk
- geometry to be consistent because Convert writes a new BPB based on
- the information it obtains from the file system driver. If Convert
- writes a BPB that conflicts with the BPB expected by the BIOS (that
- is, the existing BPB), you will not be able to boot from that disk.
-
- Additional reference words: 3.10 W_NTAS
- KBCategory:
- KBSubcategory: filsys
-
- =============================================================================
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- PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS
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- OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO
- EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR
- ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL,
- CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF
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- OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES
- SO THE FOREGOING LIMITATION MAY NOT APPLY.
-
- Copyright Microsoft Corporation 1993.