# File lib/specinfra/command/windows/base/user.rb, line 3
    def check_exists(user)
      user_id, domain = windows_account user
      Backend::PowerShell::Command.new do
        using 'find_user.ps1'
        exec "(FindUser -userName '#{user_id}'#{domain.nil? ? "" : " -domain '#{domain}'"}) -ne $null"
      end
    end