xbox live logon session

xbox live is part of the Microsoft network, it is supposed to be there.

In an attempt to make Xbox live work for my computer again I followed some advice from the internet to first reset the Xbox live app so I did that and that messed it up more then another person said to uninstall Xbox identity provider so I stupidly
deleted it and now I can't redownload it from Microsoft every time I get the same message something went wrong and now I'm stuck a few things that might be worth mentioning I was having this problem before with the Xbox console companion app I never got it
fixed it always said a specific logon session does not exist it may have already been terminated another thing is that I use a yahoo email it might also be worth mentioning this all started when I got Minecraft win 10 an tried to log in to Xbox live but got
the same message as before from console companion about logon sessions

Contact xbox support and state your problem directly to them.

https://support.xbox.com/en-US/contact-us

Ok, I just want to see if I got this straight...On the Xbox at my house I logon with my live gold account. That is what my son plays under for all his games. Everything should be saved to the cloud. On the new Xbox does he also logon with my live gold
account, or does he need his own account? I don't have any family thing setup as my Xbox is always logged on with my live account. Last, if he can just logon with my live account on the new Xbox do I need to be logged off on the one at my house? I'm not
sure I understand the "home xbox" setup.

Same - can't log in on xbox live, but can logon to my microsoft account via laptop... was working fine last night