If the problems persist, a removal and reinstallation will be required as per the steps below.
Make sure no other antivirus software is installed, otherwise, remove it and restart your computer.
Click on Enable to ensure the setting is enabled in the dashboard.
If the computer is not connected to the internet, connect it and allow some minutes for Sophos Home to update (or, click on the Sophos Home Shield on your system tray to open Sophos Home, then click on Help -> Check for updates.
Run a Windows update to make sure the system is up-to-date, then restart the computer.
Hitmanpro or another antivirus software was present on the computer prior/after installing Sophos Home.
Sophos Home has not been updated or upgraded to the latest version.
The computer has performed system restore to an earlier point and removed portions of Sophos Home.
The operating system of the computer is outdated.
The Sophos installer did not complete thru successfully.
The problem can occur due to multiple issues: "Exploit mitigation is experiencing problems" "You are not protected! Exploit mitigations are Disabled" You have received the following message on the Sophos Home UI: Applies to Sophos Home Trial/Premium for Windows