No sure why you are asking in these forums that Microsoft to send you the details. I doubt they visit here that often.
You are wise to refuse IOBit, but not for the reasons you state. It is toxic software and is never recommended in these forums because of all the damage it continuously does. So I have to wonder why you would want to put your computer through similar trials and tribulations with any other similar software.
As to Microsoft freeware, without any details I doubt anyone is going to be able to help you.
"Spammers on Facebook now know this". What is 'this'?
I can't track down a large Microsoft freewaree download which which speeds up computers for gamers. Hi Microsoft - can you send me the details - please?
(The excellent free and paid-for software company IOBit provides a similar gizmo. But I don't want it: it speeds up the computer by temporarily disabling features such as email. I need email on at all times on my machine. Spammers on Facebook now know this, but what the hell....).