A:AnswerThere are free utility programs available that will find your Product Key for you. One I have used many times is called "The Magical Jelly Bean Keyfinder". It is a freeware utility that retrieves from your Registry the Product Key (cd key) that was used to install Windows. Good luck.
A:AnswerIf you mean Office 2007, they say it will run any of the latest versions. It will nag you about upgrading to the latest 365. I have a copy of Office 2010 running in Win10 without issues.
A:AnswerThe home version is kind of like their basic os system, the pro version offers way more- if your a hardcore gamer or multi-tasker you want to go with the pro version. If you just diddle around on the computer FB, youtube, etc. the home version is fine.
A:AnswerFor the first part of your question; It's not a problem at all to have it on one computer at a time only.
For the second part; You don't have to remove it from a computer to reinstall it.
A:AnswerTry this site:
https://www.microsoft.com/en-us/windows/windows-10-specifications
and run the hardware test to see if your machine will handle Win10. Be aware that older hardware may need drivers that may or may not be available in Win10. I had a printer not work after going to Win10.. and no driver will be provided my the maker of the printer. As per their web site.
