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.

 

 

 

 

 

Software troubleshooting

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