Windows NT 4.0 Configures PC-Card Hard Disk as Drive CLast reviewed: September 6, 1996Article ID: Q153619 |
The information in this article applies to:
SYMPTOMSIf you run Windows NT on a computer with two IDE adapters (for example, Dual channel EIDE) and a PC-Card (PCMCIA) controller with a type III slot (suitable for hard disks), you may encounter the following problem. When you boot Windows NT with a PC-Card hard disk, your internal fixed disk is no longer configured as drive C. This drive letter is assigned to the PC-Card disk instead. Because the drive letters of your internal hard disk have changed, most of your applications will stop working.
CAUSEWhen configuring the PC-Cards, Pcmcia.sys detects that there is an IDE hard disk in the slot and tries to find an available IDE adapter configuration. If the primary and secondary adapter are in use (for example, one disk and one CD-ROM, each on its own bus) it will configure the PC-Card as a third adapter on IO port 0x160. Later during the startup process, when the ATDISK driver starts up it will search for possible IO ports, it will find the interface of the PC-Card first and configure the PC-Card hard disk as hard disk 0. If there is no manual drive letter configuration in the registry, hard disk 0 will be configured as drive C and the drive letters of the other volumes will be changed. WORKAROUND To regain your original drive letter assignment you need to create a manual configuration for your drive letters as follows:
Article-ID: Q136425 TITLE : Err Msg: The Drive Cannot Be Locked for Exclusive Use
STATUSMicrosoft has confirmed this to be a problem in the Microsoft products listed at the beginning of this article. We are researching this problem and will post new information here in the Microsoft Knowledge Base as it becomes available.
|
KBCategory: kbenv
© 1998 Microsoft Corporation. All rights reserved. Terms of Use. |