Execution policy is a security feature that controls which PowerShell scripts can run on a system. It helps prevent malicious scripts from executing accidentally.
Execution policy levels:
Restricted: No scripts can run (default on client systems)
RemoteSigned: Local scripts run freely; remote scripts must be signed
AllSigned: All scripts must be digitally signed
Unrestricted: All scripts run with warnings for remote scripts
Bypass: Nothing is blocked; no warnings
Undefined: No execution policy is set
Rewriting in plainer words…
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