When you insert a CD-ROM into the CD-ROM drive, it may not run automatically in Windows.

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Problem: When you insert a CD-ROM into the CD-ROM drive, it may not run automatically in Windows.

The information in this article applies to:

  • Microsoft Windows 95
  • Microsoft Windows 98
  • Microsoft Windows NT Workstation version 4.0
  • Microsoft Windows NT Server version 4.0

Cause: This issue can occur if there is an incorrect value in the Windows registry.


IMPORTANT: This article contains information about editing the registry. Before you edit the registry, make sure you understand how to restore it if a problem occurs. For information about how to do this, view the “Restoring the Registry” Help topic in Regedit.exe or the “Restoring a Registry Key” Help topic in Regedt32.exe.

WARNING: Using Registry Editor incorrectly can cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that problems resulting from the incorrect use of Registry Editor can be solved. Use Registry Editor at your own risk.

For information about how to edit the registry, view the “Changing Keys And Values” Help topic in Registry Editor (Regedit.exe) or the “Add and Delete Information in the Registry” and “Edit Registry Data” Help topics in Regedt32.exe. Note that you should back up the registry before you edit it.

To resolve this issue, use Registry Editor to locate the following key:


Modify the value for the NoDriveTypeAutoRun key to 0000 95 00 00 00 (or 0x95 in Regedt32.exe).

After you make this change, quit Registry Editor and restart your computer.

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