If you have an HP that came with Windows 7 you should be able to reinstall the operating system with this DVD and the PC will pull the product key from the BIOS.

If for some reason, it does not detect the product key you may extract it via this method: (It should work perfectly)

If it doesn't activate normally, you may need to use the SLMGR activation method detailed here.

If you have a legitimate product key, you may also use this disc to install and activate standard or Volume License Windows 7 Professional Product keys.

You can still upgrade to Windows 10 provided you regularly make use of assistive technologies!

So if you regularly use features like magnification, On-screen keyboard, text to speech, speech recognition or the like you legally qualify for the upgrade on your legally activated copy of Windows 7! Don't miss out!

Also included will be one random stick of RAM from an HP system unless you contact me and wish for me to include otherwise.

If you want me to check, for some locations I may be able to send the package via Lettermail in order to allow some savings but ebay doesn't allow me to offer it for "calculated shipping". Always feel free to ask me if you have any questions :)