icacls /?

C:UsersUser>icacls c:windows
       c:windows
       NT SERVICETrustedInstaller:(F)
       NT SERVICETrustedInstaller:(CI)(IO)(F)
       NT AUTHORITYSYSTEM:(M)
       NT AUTHORITYSYSTEM:(OI)(CI)(IO)(F)
       BUILTINAdministrators:(M)
       BUILTINAdministrators:(OI)(CI)(IO)(F)
       BUILTINUsers:(RX)
       BUILTINUsers:(OI)(CI)(IO)(GR,GE)
       CREATOR OWNER:(OI)(CI)(IO)(F)