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Fdisk.exe Limits Non-MS-DOS Partition End to 8 GB
Article ID: 245213 - View products that this article applies to.
This article was previously published under Q245213
On drives larger than 8 gigabytes (GB), the Fdisk tool (Fdisk.exe) reports that any non-MS-DOS partitions end at 8 GB.
This behavior occurs because Fdisk.exe does not use Logical Block Addressing (LBA) when computing partition table information for unknown partition types.
A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that this article describes. Apply it only to systems that are experiencing this specific problem.
To resolve this problem, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:
http://support.microsoft.com/contactus/?ws=supportNote In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.
The English-language version of this fix should have the following file attributes or later:
Date Time Size File name Platform ------------------------------------------------------------------- 01/10/00 10:08pm 63,132 Fdisk.exe Windows 95 OSR 2 12/15/99 09:48pm 63,932 Fdisk.exe Windows 98 12/15/99 09:26pm 64,156 Fdisk.exe Windows 98 Second Edition
Microsoft has confirmed that this is a problem in Windows 95 and Windows 98.
An update to the original release of Windows 95 (version 4.00.950) for this problem will not be developed. This release was a FAT16 environment, and was developed before large drives (8 GB and larger) were available in the marketplace. Support for large drives (which requires support for INT13h extensions) is introduced in Windows 95 OEM Service Release 2 (OSR2) and later, along with FAT32 support.
The update allows Fdisk.exe to use LBA when computing partition table information for unknown partition types on LBA drives.
For additional information about Windows 98 and Windows 98 Second Edition hotfixes, click the article number below to view the article in the Microsoft Knowledge Base:
206071For additional information about Windows 95 hotfixes, click the article number below to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/206071/EN-US/ )General Information About Windows 98 and Windows 98 Second Edition Hotfixes
(http://support.microsoft.com/kb/161020/EN-US/ )Implementing Windows 95 Updates