Software troubleshooting

To repair	●	Turn the computer off completely and then turn it on again. This is the easiest (and
software		sometimes the best) way.
problems, try	●	Update the drivers (see Updating device drivers, following).
these methods:	●
	●	Use Microsoft System Restore Software program and hardware driver reinstallation (see
		Microsoft System Restore, later in this table). — Restores your computer to a
		configuration that was in use before the software was installed.
	●	Reinstall the software program or hardware driver (see Software program and hardware
		driver reinstallation, later in this table). — Restores the software (if it came with the
		product) or hardware driver to factory defaults.
	●	System Recovery (see Troubleshooting and Maintenance Guide on your computer.
		Select the HP Support Assistant app on the Start screen, select My computer, and
		then select User guides). — Erase and reformat the hard disk drive, and then reinstall
		the operating system, programs, and drivers. This erases all data files you have
		created.

Updating device	Complete the following procedure to update a driver, or to revert to an earlier version of the
drivers	driver if the new one does not solve your problem:
	1.	From the Start screen, type c and then select Control Panel.
	2.	Select System and Security, and then in the System area, select Device Manager.
	3.	Select the arrow to expand the type of device you want to update or roll back. (For
		example, DVD/CD-ROM drives).
	4.	Double-click the specific item (for example, HP DVD Writer 640b).
	5.	Select the Driver tab.
	6.	To update a driver, select Update Driver, and then follow the on-screen instructions.
		Or, to revert to an earlier version of a driver, select Roll Back Driver, and then follow
		the on-screen instructions.

Microsoft	If you have a problem that might be due to software that was installed on your computer, use
System Restore	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.

	To start a system restore or to add restore points manually:
	1.	Close all open programs.
	2.	From the Start screen, type c, and then select Control Panel.
	3.	Select System and Security, select System, and then select System protection.
	4.	Select the System protection tab on the System Properties screen.
	5.	Follow the on-screen instructions.