If you navigate to a user's profile page while logged in as admin, you should see the menu entry "Admin options..." below the user's profile image among the other menu links. Clicking on the "Admin options..." link will open up the admin options like deleting / banning the account and you can also edit the user's profile and settings.

Thank you ! It works well, I didn't see it at first. Sorry for the dupplicate question. Where is the best place for such basics question ? here it is technical seems advanced user group. I am looking for just normal user. Just basic how to.

The technical support group is fine for questions like this.