Hi,
I've signed in and using VS 2015 Community Edition for more than a year, but suddenly there is Expired License popup everytime I opened my VS 2015. I've tried all the tutorial provided in https://pupuweb.com/solved-visual-studio-community-license-expired-evaluation-period-ended/ , but still no good news.
And also, everytime I tried to add an account and using my current account, there is another error popup "AADSTS50074: Strong Authentication is required."
I don't know what else to do, can anyone please help me?
Thanks in advance.

