Dell Inspiron 1720 (Mid 2007) - Manual (Page 134)

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Troubleshooting
Using Windows Vista System Restore
The Windows Vista operating system provides System Restore to allow you to
return your computer to an earlier operating state (without affecting data
files) if changes to the hardware, software, or other system settings have left
the computer in an undesirable operating state. See the Windows Help and
Support Center for information on using System Restore.
To access the Windows Help and Support Center, click Start → Help and
Support.
NOTICE:
Make regular backups of your data files. System Restore does not
monitor your data files or recover them.
NOTE:
The procedures in this document were written for the Windows default view,
so they may not apply if you set your Dell computer to the Windows Classic view.
Creating a Restore Point
You can automatically and manually create a restore point from the Windows
Vista Back Up and Restore Center. There are two ways to get to the Windows
Vista Backup and Restore Center:
1 Click Start → Welcome Center. In the Get started with Windows
section, click Show all 14 items... → Back Up and Restore Center.
2 Click Start → All Programs → Maintenance → Back Up and Restore
Center. Under Tasks, click Create a restore point or change settings.
For more information,
1 Click Start → Help and Support.
2 Type System Restore in the search field and press <Enter>.
Restoring the Computer to an Earlier Operating State
If problems occur after you install a device driver, use Device Driver Rollback
(see "Using Windows Device Driver Rollback" on page 130) to resolve the
problem. If that is unsuccessful, then use System Restore.
NOTICE:
Before you restore the computer to an earlier operating state, save and
close all open files and exit any open programs. Do not alter, open, or delete any
files or programs until the system restoration is complete.