Hi Lazarus99,
Welcome to Dell Community Forum.
You have not mentioned the Operating System on your computer hence you can check these links for Factory Image Restore and use whichever proves helpful. Please save all important data on an external storage device prior to attempting the Factory Restore as you may lose all saved data.
How to restore your Windows 7 computer to factory settings:
Restoring Your Dell Computer to Original Factory Installation with Dell DataSafe Local Backup 2.0:
PCRestore:
Let us know if further help is needed.
Thanks and regards,
Babita S
#iworkforDell
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