How to turn on or off Periodic Scanning in Windows 10

With Windows 10 build 14352, Microsoft has introduced a new security feature which will be available in the final Anniversary Update. A new Periodic Scanning feature is an option of Windows Defender, which allows Defender to complement an alternative antivirus solution. So users who prefer to install some other antivirus software like Avast, Kaspersky, Symantec etc can get additional protection. Let's see how it works.