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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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