It's language I deal with often and regularly, and also regarding law to the extend that I know commercial law is not whatever a company decides they want it to be at their arbitrary discretion. An EULA is not law, but an EULA is subject to the law. Also, a software license is a personal property. EULAs can change arbitrarily, but a license purchase is a matter of legal and binding contract, and that cannot change by one side's unilateral action.
"You are posting all of this legal stuff as to what MS can do and can't do."
Would you feel the same if someone told you any other item you bought was yours to choose what to do with? Would you respond as if you expected you had no rights to your property and that someone would have to prove to you that the businesses you bought stuff from weren't your overlords?