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#20
Hello RZY,
It sounds like you may not have Aero running. Check the items in the red WARNING box at the top of the tutorial to see if one them may be the reasone why you may not have Aero running.
Why do you need to copy those files into System32? You could run a sfc /scannow command to repair any corrupted system files instead.
Hope this helps for now,
Shawn