Quelle: docs.microsoft.com

The Potentially Unwanted Application (PUA) protection feature in Windows Defender Antivirus can identify and block PUAs from downloading and installing on endpoints in your network.

These applications are not considered viruses, malware, or other types of threats, but might perform actions on endpoints that adversely affect their performance or use. PUA can also refer to applications that are considered to have a poor reputation.

Enable PUA:

Get-MpPreference

Set-MpPreference -PUAProtection Enabled

Set-MpPreference -PUAProtection AuditMode

Set-MpPreference -PUAProtection Disabled