Microsoft Xbox mess up my computer pin log in

We can’t log in anymore my pin is gone and when I click set up my pin it asks for an app in Microsoft store how do I get out of here? I already tried resetting my computer

Yes but I already was before, I started up my computer and the pin I use on it is gone so it now says set up a pin, and when I click on that it asks me if I want to open an app for it since there isn’t one available so now I’m stuck on my log in acreen

Thank you, we were able to get the Microsoft Launcher to work, but when he goes to start playing the game it won’t let him log in using his Microsoft account (says he has to buy the game, even though he’s linked as a family member to my account where I had purchased it for him last year before he had his own account or computer), and if I try to log in with mine it wants a PIN and there’s no way for me to reset it except for on my laptop and when I try to use that on his computer it says the PIN is incorrect.

Hi, thank you for the advice but it specifically is not asking for an Xbox pin, and will not let me enter more than four digits when prompted for my non-existent pin. Whenever it says my pin is incorrect, it explicitly tells me to change my pin through Windows Hello. Everything that is going on here is all on Windows computers. No consoles are involved. I can't get a screenshot at the moment as the computer that's been having the error is currently in use and I cannot get access to it, I will edit this post or reply to it with a screenshot when I am able to get to it. A quick rundown of the situation is as follows:

There are two computers upstairs, one with Gamepass Ultimate, one without

We are trying to put the Gamepass Ultimate account onto the computer that does not have it.

When trying to sign in, the Xbox PC app asks for a Windows Hello Pin that does not exist

There is no possible way to bypass this pin, and no pins work, as no pin exists.

We try logging a different account onto the computer, it asks for another pin that does not exist.

App thinks its a dictionary attack and locks us out of the Xbox PC app

We just want to get my account onto a new computer, that's all we want, but it's asking for login info that doesn't exist

Thanks, he does have his own Microsoft account on his computer and XBox, and I added him as a family member to my account. I downloaded the Minecraft launcher, and then to start playing if we choose his profile it takes us back to the main screen prompting him to purchase the game, and if I try to log in using my Microsoft account it wants my PIN which is linked to my laptop and his computer won’t accept it.