When I login, the message that Windows Defender and Webroot SecureAnywhere are both turned off. When I run Webroot and start a scan, Webroot suddenly disappear. This is happening on a Surface running Windows 10 Home and on a Surface Pro running Windows 10 Pro. It doesn't occur on my desktop PC which is running Windows 10 Enterprise.
I have seen this being reported 3 years ago. The fix suggested cannot be applied to the current version of Windows 10.