How to Enable or Disable the CD-ROM Autorun Feature

ID: Q155217

The information in this article applies to:

SUMMARY

If there is a CD-ROM changer attached to your computer, you may want to disable the Autorun (the automatic running of a compact disc or the automatic playing of an audio compact disc) feature. If the Autorun feature is enabled with a CD-ROM changer, each time a new compact disc is inserted into one of the trays, Windows NT will cycle through every tray in the changer.

This article describes how to disable the Autorun feature in Windows NT version 4.0.


MORE INFORMATION

There is no user interface option to enable or disable the Autorun feature. To enable or disable the feature, you must edit the registry. To do so, follow the steps below.

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

  1. Change the Autorun value in the following registry key:

    HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\CDRom

    To disable the Autorun feature, change the Autorun value to 0. To enable the Autorun feature, change the Autorun value to 1.


  2. Restart the computer.


NOTE: The above method disables the Autorun feature completely. If you want to disable the feature on a per compact disc basis, you can hold down one of the SHIFT keys while inserting the compact disc.


For more information on this utility see the following article in the Microsoft Knowledge Base:

ARTICLE-ID: Q168113
TITLE : Using Windows 95 PowerToys with Windows NT 4.0

Additional Information

There are two other keys that can affect this functionality:
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer
NoDriveTypeAutoRun = 0x00000095
HKEY_USERS\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer
NoDriveTypeAutoRun = 0x00000095
The correct value for each is0x00000095.

Additional query words: prodnt auto autoinsert insert notification autorun.inf 


Keywords          : kbenv nthowto ntconfig ntregistry NTSrvWkst 
Version           : winnt:
Platform          : winnt 
Issue type        : kbhowto

Last Reviewed: March 24, 1999