Running TCMD with the /elevated parameter yields a message box "The parameter is incorrect. /elevated". Also right-clicking on the tcmd icon on the task bar (which how I normally used to start a TCMD session in administrative mode) no longer has a "Run as administrator" option.. I actually have found no way to delete files/directories from the "C:\Program Files (X86)". I am the first (and only) user on this Windows 7 machine.