
On-execution detection means that only executable files will be scanned at the moment they are run to ensure they are clean and will not cause any damage to your machine or data.Malware will be detected in both cases when a file is being executed and during various operations with the file such as opening it for reading or editing. Smart on-access detection means that the antimalware program runs in the background and actively and constantly scans your machine system for viruses and other malicious threats for the entire duration that your system is powered on.You can choose one of the following scan modes: An administrator must turn off the Microsoft Defender manually to avoid potential compatibility issues.

On machines running Windows Server operating systems, Microsoft Defender will not be turned off automatically when real-time protection is enabled.
