Dell Inspiron 15 (M5010, Early 2010) - Manual (Page 64)

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You can restore the operating system on your computer using any of the following options:
CAUTION: Using Dell Factory Image Restore or the Operating System disc permanently deletes
all data files on your computer. If possible, backup your data files before using these options.
Option Use
System Restore as the first solution
Dell DataSafe Local Backup when System Restore does not resolve your problem
System recovery media when operating system failure prevents the use of System
Restore and DataSafe Local Backup
when installing the factory image on a newly installed hard drive
Dell Factory Image Restore to restore your computer to the operating state it was in when
you received your computer
Operating System disc to reinstall only the operating system on your computer
NOTE: After restoring your operating system, the Dell Digital Delivery application automatically
downloads and installs the software you purchased with your computer. If the Dell Digital
Delivery application is not installed on your computer, you can download and install the
application from support.dell.com. For more information, see “Install Software Using Dell Digital
Delivery” on page 22.
Restoring Your Operating System
INSPIRON