Hi,

Thank you for writing to the Dell Community Forum. 

Dell computers come with a pre-loaded utility called Dell Back Up and Recovery, using which our customers can create their own recovery disks containing the factory image of Windows operating system and the drivers. 

In case you have not created the recovery disks, please visit the following link to request for the operating system and drivers disk for your system:

http://dell.to/1PXW7mj  

Please let me know if you have any other questions.