How the Constrained Language Mode is enforced

Underneath, PowerShell will create psm1 and ps1 files in AppData and prove if an AWL (application whitelisting) solution is running. It is going to be blocked from AppLocker, as AppLocker is up and running. Therefore, you will see these kinds of error in the EventLog, which are not errors at all. They just come up due to the validating mechanism. To provide better filtering for these false positives, the additional keyword __PSSCRIPTPOLICYTEST_ is added to the specific files:

After these two files have been blocked, the PowerShell session will open in ConstrainedLanguageMode. This means that if ...

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