How do I factory reset my laptop?

[Bassman1]

Windows 7 or 8 ??
When doing the recovery just do not save your files to back up.
Create the operating system recovery disc set or DVD and use them to reinstall W7 to the main hard drive partition drive C this puts it back to factory. Or after creating the recovery disc that no longer comes with new computers use the built in system recovery and when asked just do not back up or save your files.

Windows 7
How do I create backup discs with Dell DataSafe Local Backup 2.0? http://www.dell.com/support/troubleshoot...cid=266282

Restoring Your Dell Computer to Original Factory Installation with Dell DataSafe Local Backup 2.0
http://www.dell.com/support/troubleshoot...cid=266287

Windows 8
How To Create Windows 8 Recovery Disc Step by Step http://www.dell.com/support/troubleshoot...cid=594026

How to refresh, reset, or restore your PC, see Remove every thing and reinstall Windows http://windows.microsoft.com/en-us/windo...h-reset-pc