Move and Copy are commands, not functions.... so those parentheses need to go. Almost surprised they are not interfering, but Kix can be very forgiving...
On your superuser link there is this... "You might also need to disable system file protection, otherwise Windows may detect the change and restore the original file"
Aside from that, I'm not going to be much help. Can't say I want to endorse this kind of system modification from a script.
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(... better days ahead)
