Article: Q239119
Product(s): Microsoft Windows 95.x Retail Product
Version(s): WINDOWS:95
Operating System(s):
Keyword(s): kbOSWin95bug kbOSWin98bug kbDSupport kbGrpDSWin9xDDK
Last Modified: 17-DEC-2000
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The information in this article applies to:
- Microsoft Windows 95
- Microsoft Windows 98
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SYMPTOMS
========
FDISK, when run from an MS-DOS box after Windows has been started, reports the
wrong disk size for PCCARD-based ATA drives that contain a storage capacity
greater than 1023 cylinders. This issue generally applies to disk drives that do
not appear in real mode prior to protected-mode Windows (this problem occurs,
for example, with drives where the controller has no BIOS extension, so MS-DOS
has no way of knowing that they exist).
CAUSE
=====
A bug in the IDE device driver, Esdi_506.pdr, results in FDISK using INT 13
function 8 to obtain disk geometry information. This function truncates the
cylinder count to a 10-bit value.
STATUS
======
Microsoft has confirmed this to be a bug in the Microsoft products listed at the
beginning of this article.
Additional query words:
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Keywords : kbOSWin95bug kbOSWin98bug kbDSupport kbGrpDSWin9xDDK
Technology : kbWin95search kbWin98search kbZNotKeyword3 kbWin98
Version : WINDOWS:95
Hardware : x86
Issue type : kbbug
Solution Type : kbnofix
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