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SYMPTOMSWhen you try to boot your computer from the Windows 2000 installation CD-ROM, you may receive the following error message: This behavior may occur when you boot from the Windows 2000 installation CD-ROM to perform an installation or repair, or to use Recovery Console. CAUSEThis behavior occurs when all drive letters are already used and assigned to existing disk partitions, because the CD-ROM drive is the last device to be assigned a drive letter by Mount Manager (MountMgr). After you boot from the Windows 2000 installation CD-ROM, MountMgr queries your hard disks and assigns drive letters to all existing partitions. If your computer contains more than 24 partitions, MountMgr cannot assign a drive letter to the CD-ROM drive to continue Setup. RESOLUTIONPower off one or more of your physical hard disks--preferably, hard disks not containing software fault-tolerant sets (mirrors, volume sets, or stripe sets) before booting from the Windows 2000 CD-ROM. This allows the CD-ROM drive to be assigned a drive letter so it can be used during Setup. MORE INFORMATIONFor additional information, please click the article numbers below to view the articles in the Microsoft Knowledge Base: Q234048 How Windows 2000 Assigns, Reserves and Stores Drive Letters Q221799 Drive Letters Assigned to Unsupported Partition TypesThis error message can also occur if you have removed the Everyone group from the root of the system drive on a disk that uses the NTFS file system. Restricted NTFS permissions keep Setup from copying the file. Additional query words:
Keywords : kberrmsg kbsetup diskmem |
Last Reviewed: December 29, 1999 © 2000 Microsoft Corporation. All rights reserved. Terms of Use. |