HP Presario All-in-One CQ1-1000 - Desktop PC Getting Started Manual page 40

To repair software problems, try these methods:
Turn the computer off completely and then turn it on again. This is the easiest (and sometimes the best)
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way.
Update the drivers (see Updating drivers on page 15).
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Use Microsoft System Restore (see Microsoft System Restore on page 15) — Restore your computer to
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a configuration that was in use before the software was installed.
Reinstall the software program or hardware driver. (See Software program and hardware driver
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reinstallation on page 16) — Restores the software (if it came with the product) or hardware driver to
factory defaults.
System Recovery (see System Recovery on page 19) — Erase and reformat the hard disk drive, and
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then reinstall the operating system, programs, and drivers. This erases all data files you have created.
14 Chapter 3 Troubleshooting and maintenance ENWW