Article ID: 191579 - View products that this article applies to.
This article was previously published under Q191579
When you view My Computer or Windows Explorer, some or all of your drives may be missing. When you view Device Manager, the missing drives may be displayed, and you may be able to gain access to the drives by clicking Start, clicking Run, typing the drive letter in the Open box, and then clicking OK. The drives are accessible at a command prompt or in Safe mode, and can be access by ScanDisk and Disk Defragmenter.
This behavior can occur if the PowerToys TweakUI tool is installed and configured to hide one or more of your drives.
To resolve this behavior, follow these steps:
Windows MillenniumThis issue can occur if you install TweakUI in Windows 98, and then upgrade to Windows Millennium. You can also install TweakUI on Windows Millennium.
Windows 98If the TweakUI tool is not installed, install it from the Windows 98 CD-ROM and then follow steps 1-4. For information about how to install the TweakUI tool, please see the following article in the Microsoft Knowledge Base:
(https://support.microsoft.com/kb/190643/EN-US/ )How to Install and Uninstall the TweakUI Tool in Windows 98
This resolution may also work in Win 2000, if TweakUi was installed prior to upgrading the OS.
Article ID: 191579 - Last Review: May 28, 2007 - Revision: 3.3