I want to remove an account from Microsoft team. Can someone help me with that

Some more context will be needed here. What kind of account are we talking about? Are you the owner of the account, or the owner/admin of the Team/organization from which it is to be removed? If you want a proper answer, provide as much information as possible.

Mohamed_Faisalso you want to remove a member from a team?? if you are an admin for that team you can do it...

Select the Team and then click on ... (3 dots) than Manage team

You will see a group of Owners and Members / Guests list expand to see those

Click the X mark for the member you want to remove from Teams.

let me know if that helps...