New or existing device does not work after installing a new device.

Cause

Solution

 

 

There is a conflict with an existing device.

To resolve a device conflict, you may need to disable one of

 

the devices or uninstall an old device driver:

 

1.

Click Start, and click Control Panel.

 

2.

Click Hardware and Sound.

 

3.

Click Device Manager.

 

4.

Click the plus sign (+) next to the problem device and

 

 

check for exclamation points in a yellow circle near the

 

 

device icon. The exclamation point means there is a

 

 

device conflict or problem with the device. Exclamation

 

 

points do not always appear when a device is not

 

 

working properly.

 

5.

If there is an old or unnecessary device driver listed in

 

 

the Device Manager, this may be causing the device

 

 

conflict. To uninstall the old driver for the new device

 

 

driver to work properly, right-click the device, click

 

 

Uninstall, and then click OK.

 

6.

Right-click the device, and select Properties.

 

7.

If available, click the Resources tab to verify that there

 

 

is a device conflict.

 

8.

Click the General tab to see if your device is enabled

 

 

and working properly. If it is available, click the

 

 

Troubleshoot button, and follow the onscreen

 

 

instructions in the device troubleshooter wizard.

 

9.

Restart the computer.

 

 

 

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