Service manual

Reinstalling Drivers and Utilities: Dell Inspiron 4150
10. When the name of the appropriate driver appears, click Next.
11. Click Finish and restart your computer.
Using Microsoft Windows XP Device Driver Rollback
If you install a new device driver that causes system instability, you can use the Windows XP Device
Driver Rollback utility to replace the new device driver with the previously installed version of the
device driver. If you cannot reinstall your previous driver by using the Device Driver Rollback utility,
then use System Restore to return your operating system to its previous operating state before you
installed the new device driver. To use Device Driver Rollback:
1. Click the Start button and right-click My Computer.
2. Click Properties.
3. Click the Hardware tab and click Device Manager.
4. In the Device Manager window, right-click the device for which the new driver was installed
and then click Properties.
5. Click the Drivers tab.
6. Click Roll Back Driver.
Resolving Software and Hardware Incompatibilities
In the Microsoft® Windows® XP operating system, IRQ conflicts occur if a device either is not detected
during the operating system setup or is detected but incorrectly configured. To check for IRQ conflicts
on your computer:
1. Click the Start button and click Control Panel.
2. Click Performance and Maintenance and click System.
3. Click the Hardware tab and click Device Manager.
4. In the Device Manager list, check for conflicts with the other devices.
Conflicts are indicated by a yellow exclamation point (!) beside the conflicting device or a red X if
the device has been disabled.
5. Double-click any conflicting device listed to bring up the Properties window so that you can
determine what needs to be reconfigured or removed from the Device Manager.
6. Resolve these conflicts before checking specific devices.
7. Double-click the malfunctioning device type in the Device Manager list.
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