That should work just fine.
Out of curiosity - do you have installation media (CD/DVD or USB) for Windows 7 Pro SP1 on hand and if not where do you think you will obtain same?
Note: For OEM (Windows preinstalled from the manufacturer) systems you will not get an installation ISO from here but you can sure try:
If the install will not activate (and if you want to activate it today) you will have the most satisfactory results by speaking to a human being:
Click the Start button/orb and in the box enter:
Choose your nearest country (United States in the example), call the toll-free number to speak to a human being:
Don't press any keys on your phone, don't respond to any voice prompts, just wait, wait, wait and you will be connected to a human being.
Explain your situation and they should help you.
If they don't help or can't help just hang up and call back again and the chances are good that you will talk to a different person and eventually you should find some nice person that will help you.
Edited by joseibarra, 11 June 2018 - 01:34 AM.