Complete the following procedure to update a driver, or to revert to an earlier version of the driver if the new one does not solve your problem:

1.Tap the Start button.

2.Type Device Manager into the Start Search box, and then tap Device Manager to open the Device Manager window.

3.Tap the plus sign (+) to expand the type of device you want to update or rollback. (For example, DVD/CD- ROM drives).

4.Double-tap the specific item (for example, HP DVD Writer 640b).

5.Tap the Driver tab.

6.To update a driver, tap Update Driver, and then follow the onscreen instructions.

Or, to revert to an earlier version of a driver, tap Rollback Driver, and then follow the onscreen instructions.

You can also go to the HP Support website: www.hp.com/support and select the task, Download drivers and software. Follow the onscreen instructions.

Microsoft System Restore

If you have a problem that might be due to software that was installed on your computer, use System Restore to return the computer to a previous restore point. You can also set restore points manually.

NOTE: Always use this System Restore procedure before you use the System Recovery program.

NOTE: Some features might not be available on systems that are shipped without a version of Microsoft Windows.

To start a System Restore:

1.Close all open programs.

2.Tap the Start button, tap Computer, and then tap Properties.

3.Tap System protection, System Restore, tap Next, and then follow the onscreen instructions.

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Chapter 4 Troubleshooting and maintenance

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