Cause:

Solution:

1) Restart Windows 95.
2) Open the 'Device Manager', select the 'View devices by connection' radio button.
Device Manager
3) Click the 'Plug and Play BIOS' icon, click the 'PCI bus' icon in the 'View devices by connection' list box, select the IDE controller icon that the CD-ROM drive is connected to, and click 'Properties'. (The IDE controller 'Properties' dialog box appears.)
Hard drive controller Properties
NOTE: If your CD-ROM drive is connected to an IDE controller on the sound card, view the sound card driver properties by opening the 'Device Manager', selecting the 'View devices by type' radio button, selecting sound cards, and double-clicking on the sound card driver.
4) Click the 'Resources' tab and view the 'Conflicting device list' area to determine what device is conflicting with IDE controller and which resource value is in conflict.
5) Click 'OK'.
6) Double-click on device type conflicting with the IDE controller drive in the list box.
7) Double-click on the driver for the device type conflicting with the IDE controller drive. (The device driver 'Properties' dialog box appears.)
8) Click on the 'Resources' tab and if the 'Use automatic settings' check box is selected, clear it.
9) Select the resource in the 'Resource settings' list box and click 'Change Setting...'.
NOTE: If the 'No Modifications Allowed' message box appears, this resource cannot be changed.
'No Modifications Allowed' dialog box
10) Select a new value from the list of available unassigned resources in the drop-down list box and then click 'OK'.
An example device 'Properties' dialog box
NOTE 1: If the device is not plug and play, you will have to set the resources using hardware jumpers before the resource value can be changed.
NOTE 2: If you cannot change resources assigned to the device conflicting with the IDE controller, you may have to remove the conflicting device or configure the CD-ROM drive to run another IDE controller.
11) Restart Windows 95 for the change to take effect.