Run Microsoft Defender from Command Line using MpCmdRun.exe
To do so, open the command prompt as an administrator. Type the following to get the entire list of commands:
Run Defender Quick scan from the command line
So for instance if you wish to run a Quick scan from the command line, you can use -Scan 1 parameter:
Run Defender Full scan from the command line
To perform a Full scan, use:
Purge Windows Defender Definitions cache
At a command prompt (admin) enter the following command and hit Enter:
Update Windows Defender Quick from the command line
To Update Windows Defender or to create a shortcut to update your Windows Defender you can use the following command:
You can also create desktop shortcuts to run the following commands. Read: You can also update Windows Defender definitions using Windows PowerShell.
MpCmdRun.exe process
Here is the entire list which I have copy-pasted from the command prompt results: Command Descriptions:
-? / -h : Displays all available options for this tool-Trace [-Grouping #] [-Level #] : Starts diagnostic tracing-RemoveDefinitions [-All] : Restores the installed signature definitions to a previous backup copy or to the original default set of signatures-RestoreDefaults : Resets the registry values for Microsoft Antimalware Service settings to known good defaults-SignatureUpdate [-UNC] : Checks for new definition updates-Scan [-ScanType] : Scans for malicious software-Restore -Name
Hope this helps you get started. For details, you may visit Microsoft.