MSD May Return Incorrect Values for Extended Partitions

ID: Q81745

The information in this article applies to:

Microsoft Windows versions 3.1, 3.11

SUMMARY

Microsoft Diagnostics (MSD) returns both the fixed disk parameters (drive type, cylinders, sectors) and the CMOS fixed disk parameters for each logical drive. The CMOS fixed disk parameters are correct for the primary MS-DOS partition only, and can be ignored for each logical drive in the extended partition.

MORE INFORMATION

The CMOS fixed disk parameters are only accurate for the primary partition. The CMOS information for each logical drive of the extended partition containsfalse values. This is a result of the MS-DOS partitioning scheme and the way partition information is stored.

Additional query words: 3.10 win31 KBHW 3.11

Keywords :
Version : WINDOWS:3.1,3.11
Platform : WINDOWS
Issue type :