How to connect Microsoft to switch?

Here's the official guide to how to change the Microsoft account that your Gamertag is connected to, I hope that helps:

support.xbox.com/.../switch-gamertag-to-different-microsoft-account

Recently my account was compromised and connected to a random nintendo switch. Now I have no clue as to how to unlink the nintendo switch from my account as the only forums I've seen about this situation if you have access to the nintendo switch. I dont have access to the switch so how do I unlink the account from my Microsoft one?

The problem with unlinking this is gonna be the fact that its your Microsoft account is linked to the switch account and not the other way around.

The linking process starts on Nintendo's end. Therefore unlinking it would also have to be done from Nintendo's end.

Ok, so how would someone be able to use a switch to connect multiple xboxes to the internet and be able to connect to each other on Live games using a switch? That is part 2 of my question...

Ok thanks. That helps tons. Ive checked the settings for my main PC account (my account), it was allready set to allow friends, multiplayer and clubs. I domt know why i couldnt have friends. So ill have the check again later. Im at work.

So now that i know how to configure the privacy, lets move on.

The next switch, it will not connect to microsoft account. On the switch, i will click "connect with Microsoft account " it gives me link and code. I go to link, type in code, sign in to account. Website says "all done."

Back to switch, i try to connect again and it gives me link and code again.

In addition to the above:

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I checked Microsoft's instructions on how to connect things, and their recommendation is to connect the audio from the TV's output rather than directly from the Xbox 360 E. So check if you get sound from the Xbox 360 when switching the Pioneer system to
the TV input.