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- HP Community
- Desktops
- Desktop Operating Systems and Recovery
- lost product key for 2009 Compac DC5800

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01-22-2018 10:59 PM
I upgraded to windows 7/64 for the user per his personal request and found out that the product key has been removed by tech who set up puter originally. How do I get the product key. User wanted win/7 because he is familiar with it. The original O/S was Vista 2009
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01-22-2018 11:05 PM
Hello @Whooinhell2000
Thank you for posting in the HP Support forum.
If the computer originally had Windows Vista, then it has a Vista key, not Windows 7 key.
The key for Vista and 7 can only be found from the COA sticker attached to the PC (usually on the bottom of a notebook, or the side of a desktop PC). If the COA sticker is gone, no way to obtain the key

*** HP employee *** I express personal opinion only *** Joined the Community in 2013
01-22-2018 11:05 PM
Hello @Whooinhell2000
Thank you for posting in the HP Support forum.
If the computer originally had Windows Vista, then it has a Vista key, not Windows 7 key.
The key for Vista and 7 can only be found from the COA sticker attached to the PC (usually on the bottom of a notebook, or the side of a desktop PC). If the COA sticker is gone, no way to obtain the key

*** HP employee *** I express personal opinion only *** Joined the Community in 2013