You should be able to make it silent

You can make it silent. Create a .vbs file, open it in a text editor, and input the following...

`Set WshShell = CreateObject("WScript.Shell")

WshShell.Run chr(34) & "z:\path\to\your\script.cmd" & Chr(34), 0

Set WshShell = Nothing`

Have your scheduled task run the .vbs, rather than your initial script.