Microsoft KB Archive/191579

= Missing Drives in My Computer and Windows Explorer =

Article ID: 191579

Article Last Modified on 5/28/2007

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APPLIES TO


 * Microsoft Windows 2000 Professional Edition
 * Microsoft Windows Millennium Edition
 * Microsoft Windows 98 Standard Edition
 * Microsoft Windows 95

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This article was previously published under Q191579



SYMPTOMS
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.



CAUSE
This behavior can occur if the PowerToys TweakUI tool is installed and configured to hide one or more of your drives.



RESOLUTION
To resolve this behavior, follow these steps:
 * 1) Click Start, point to Settings, and then click Control Panel.
 * 2) Double-click TweakUI.
 * 3) On the My Computer tab, click to select the check boxes of the drives that are currently hidden.
 * 4) Click Close, and then restart your computer.

Windows Millennium
This 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 98
If 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:

190643 How to Install and Uninstall the TweakUI Tool in Windows 98

Windows 2000
This resolution may also work in Win 2000, if TweakUi was installed prior to upgrading the OS.



MORE INFORMATION
The TweakUI tool can also be used to hide mapped network drives.

Keywords: kbprb kbui KB191579

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