My nieces have new Windows laptops infested with the factory-fresh Windows virus. I would like to know the best (easiest & most recent) method to remove: 1) Cortana (completely). All traces. Never to return. 2) nearly all bundled Windows apps, including Windows Defender, never to return 3) block all 'phone home' spyware in the OS 4) stop all automatic updating A third-.party search app will be used to find local files (because I heard that removing Cortana completely removes Search). Many thanks for your help.