Computing

1. Open C:/Windows/SysetmApps and find Cortana file, something like [Microsoft.Windows.Cortana_cw5n1h2txyewy]
2. Via task manger end Cortana
3. Change Cortana file name simply by adding an 'x'

To enable remove 'x' no need to end task as not running

https://superuser.com/questions/949569/can-i-completely-disable-cortana-on-windows-10