Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
Dear respected Joon Han1,
Good day! Thank you for posting to Microsoft Community. We are happy to help you.
I’m sorry you’re having a problem and for the situation you encountered, we deeply understand the inconvenience caused and apologize for it.
As per your description and error message, Microsoft aware of this issue and currently they are investigation and working on it to fix it. Here you can see Microsoft release post article for your reference: [INVESTIGATING] Error “Something Went Wrong [1001]” signing in to Microsoft 365 Desktop Applications - Microsoft Support
We appreciate your understanding that sometimes the initial suggestions may not resolve the problem very soon.
Appreciate your patience and understanding and thank you for your time and cooperation.
Sincerely,
Waqas Muhammad