How to Fix 'Execution of scripts is disabled on this system' in PowerShell
Systematic methodology to understand PowerShell execution policies, identify current restrictions, and safely apply scoped permissions to run local automation scripts.
01. Diagnosing the Script Execution Error
When attempting to run a local .ps1 script in Windows PowerShell, you may encounter an explicit security block preventing the operation:
This mechanism is enforced by Windows to guarantee that arbitrary code downloaded from untrusted locations cannot auto-execute upon user interaction.
02. Inspecting Active Execution Policies Across Scopes
PowerShell applies policies sequentially across multiple scopes (MachinePolicy, UserPolicy, Process, CurrentUser, LocalMachine). To check how policies are configured on your system, run:
Common policy tiers include Restricted (blocks all scripts), RemoteSigned (permits local scripts, requires certificates for downloaded ones), and Bypass (disables all warnings).
03. Applying Safe Permissions via CurrentUser Scope
Rather than modifying the global machine policy (which requires administrator privileges and impacts security broadly), adjust the policy strictly for your user account:
Type Y (Yes) to confirm the change when prompted by the console prompt.
04. One-Time Execution Bypass Method
If you are working on a locked-down machine where policy changes are restricted by Group Policy, you can bypass the policy for a single process invocation:
This loads the script successfully without leaving persistent configuration modifications behind on the OS.