Dell Studio XPS 435 MT (Late 2008) - Manual (Page 42)

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You can restore your operating system in the
following ways:
System • Restore returns your computer to an
earlier operating state without affecting data
files. Use System Restore as the first solution
for restoring your operating system and
preserving data files.
Dell • Factory Image Restore returns your hard
drive to the operating state it was in when
you purchased the computer. This procedure
permanently deletes all data on the hard
drive and removes any programs installed
after you received the computer. Use Dell
Factory Image Restore only if System
Restore did not resolve your operating
system problem.
If you received an Operating System disc with •
your computer, you can use it to restore your
operating system. However, using the Operating
System disc also deletes all data on the hard
drive. Use the disc only if System Restore did
not resolve your operating system problem.
System Restore
The Windows operating systems provide
a System Restore option which allows
you to restore 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. Any changes that
System Restore makes to your computer are
completely reversible.
Restoring Your Operating System