I have a Dell inspiron N-4050 laptop. And i am running windows 10 pro on it. I have a product key for it and there was windows 7 genuine with the product key from the manufacturer. But now sticker with the product key on the back faded and no product key is there. I also change the Hard drive long ago. Is there any way i can find my product key for windows-7? Or I can give windows 10 pro product key in exchange with windows 7 pro of ultimate or any. Thank you.

  • Why are you looking for a Windows 7 key if you're running Windows 10? – Seth May 10 '17 at 6:15
  • If Windows 7 came with the machine, then having the product key is pointless. It contravenes the licence to attempt to install windows 7 on a different machine. Also, if you upgraded that machine to Windows 10, you don't have a windows 7 licence any more. – Stese May 10 '17 at 6:17
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    @Seth Windows 10 for me, has now become a headache. It seriously has made me sick. I am going back to windows 7. I hated it to be honest. It has the worst update and installation policy. I want to uninstall some driver means i want to uninstall, why should it show its generosity to auto install it again, auto update it again. – Suz Aann shrestha May 10 '17 at 6:19
  • @StevenDavison so what can i do Steven Davision? Do you have any idea? – Suz Aann shrestha May 10 '17 at 6:20
  • If the installation of windows 10 was done over the top of a windows 7 one, then it's likely that you'll be able to restore to that point. Have a look in 'Settings' > 'Update and Recovery' > 'Recovery'. I believe that you'll find the option to restore here. – Stese May 10 '17 at 6:22

In your situation, based on the comments, if you don't have the paperwork, there isn't a way to retrieve the product key.

If the machine had been upgraded, it would be possible to revert to Windows 7, then use a program such as Produkey to get the Licence Key from the system.

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