HP Pavilion a400 HP Pavilion Desktop PC - (English) Users Guide PAV SEA/ANZ/IN - Page 93

hardware installation

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hardware installation (continued) Symptom Problem New device does not work. Cannot install new device driver. New or existing device does A hardware device conflict not work after installing a exists. new device. Solution You must be logged in as the computer administrator to install or uninstall a device driver. To switch users, click Start, click Log Off, and then click Switch User; choose the computer administrator user. (The computer administrator is usually the user Owner.) To resolve a device conflict, you may need to disable one of the devices or uninstall an old device driver: 1 Click Start and choose Control Panel. 2 Click Performance and Maintenance, if it is present. 3 Double-click the System icon and select the Hardware tab. 4 Click the Device Manager button. 5 Click the + (plus) symbol 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. 6 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, do the following: right-click the device, click Uninstall, and then click OK. 7 Right-click the device and select Properties. 8 If available, click the Resources tab to verify that there is a device conflict. 9 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. 10 Restart the PC. Click Start, click Turn Off Computer, and then click Restart. troubleshooting 85

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troubleshooting
85
hardware installation
(
continued
)
Symptom
Problem
Solution
New device does not work.
Cannot install new device
driver.
You must be logged in as the computer administrator to
install or uninstall a device driver. To switch users, click
Start
, click
Log Off
, and then click
Switch User
; choose
the computer administrator user. (The computer
administrator is usually the user
Owner
.)
New or existing device does
not work after installing a
new device.
A hardware device conflict
exists.
To resolve a device conflict, you may need to disable one
of the devices or uninstall an old device driver:
1
Click
Start
and choose
Control Panel
.
2
Click
Performance and Maintenance
, if it is
present.
3
Double-click the
System
icon and select the
Hardware
tab.
4
Click the
Device Manager
button.
5
Click the
+
(
plus
) symbol 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.
6
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, do the following: right-click the
device, click
Uninstall
, and then click
OK
.
7
Right-click the device and select
Properties
.
8
If available, click the
Resources
tab to verify that there
is a device conflict.
9
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.
10
Restart the PC. Click
Start
, click
Turn Off Computer
,
and then click
Restart
.