setup-folder-options.ps1

$key = 'HKCU:\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced'
Set-ItemProperty $key LaunchTo 1 # Open File Explorer to "This PC" (not "Quick access")
Set-ItemProperty $key Hidden 1 # Hidden files and folders set to "Show hidden files, folder and drives"
Set-ItemProperty $key HideFileExt 0 # Unckeck Hide extensions for known file types
Set-ItemProperty $key ShowSuperHidden 1 # Unckeck Hide protected operting system files
Set-ItemProperty $key TaskbarGlomLevel 1 # Combine taskbar buttons when taskbar is full 
Stop-Process -processname explorer # restart Explorer to apply changes

based on this SO answer http://stackoverflow.com/a/8110982