Here are the specs for your HP Pavilion dv6-7013cl Entertainment Notebook Computer. According to the specs, this model shipped from the factory with Windows 7 Home Premium 64-bit installed. Most consumer computers since 2004 haven't shipped with OS discs or Restore / Recovery Media. You should have created your personal HP Recovery Media when you first setup your computer.
Please see HP PCs - Performing an HP SystemRecovery (Windows 7) for instructions on recovering your computer to a factory like state.
If the above information didn't help and you didn't create your HP Recovery Media, please contact official HP Customer Support in your region / country, via the HP Worldwide Support Portal, to see if HP Recovery Media is available for your computer. Software may not be covered by the warranty and there may be a charge for the HP Recovery Media.
If you have any further questions, please don't hesiate to ask.
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