If the powershell.exe process running the script is using next to 0% CPU, you're likely blocked on a command-line program waiting for input from the user. Also, you can run it in powershell_isa.exe ...
If your favorite Windows utility has rounded corners, you're probably not using the fastest one.
I have about 600GB of data to copy from one server to another. Normally, I'd use ROBOCOPY for this so I can skip copying files which are identical between both systems. In this case, however, I need ...