I got this problem under System Properties > Performance.
Drive X is using an MS-DOS compatibility mode file system.
This problem often occurs on more than one drive. Usually it is caused by a driver listed in the Config.sys file that Windows Millennium Edition does not recognize and that is related to the message Compatibility mode paging reduces overall system performance. If you see both messages, see the Help for the Compatibility mode paging reduces overall system performance message first.
If you only see the message Drive X is using an MS-DOS compatibility mode file system on one drive, that drive is using an MS-DOS compatibility (real-mode) driver, which might reduce that drive?s performance. Contact your hardware manufacturer to see if an updated driver is available for your drive. If not, the drive?s performance might be less than optimal, but you can still use it.
Drive X is using an MS-DOS compatibility mode file system.
This problem often occurs on more than one drive. Usually it is caused by a driver listed in the Config.sys file that Windows Millennium Edition does not recognize and that is related to the message Compatibility mode paging reduces overall system performance. If you see both messages, see the Help for the Compatibility mode paging reduces overall system performance message first.
If you only see the message Drive X is using an MS-DOS compatibility mode file system on one drive, that drive is using an MS-DOS compatibility (real-mode) driver, which might reduce that drive?s performance. Contact your hardware manufacturer to see if an updated driver is available for your drive. If not, the drive?s performance might be less than optimal, but you can still use it.
