Hello pastorskip
Welcome to the HP Forums I hope you enjoy your experience!
Unfortunately, there is a Pavilion dv7 and an ENVY dv7 Notebook so I would encourage you to post your product number for your computer. I am linking an HP Support document below that will show you how to find your product number. As well, if you could indicate whether your operating system is 32-bit or 64-bit as with this and the product number we can provide you with accurate information.
How Do I Find My Model Number or Product Number?
http://h10025.www1.hp.com/ewfrf/wc/document?cc=us&lc=en&docname=c00033108
Is the Windows Version on My Computer 32-bit or 64-bit?
http://h10025.www1.hp.com/ewfrf/wc/document?cc=us&lc=en&docname=c02033168
I would like to thank you for posting on the HP Forums. Have a great day!