Fix 'PowerShell Not Recognized as Internal or External Command'
If you see the error 'powershell' is not recognized as an internal or external command
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listPowerShell Port Already Allocated: Troubleshooting Checklist
When you try to start a PowerShell HTTP listener, create a TCP listener, or enable PowerShell Rem...
Fix PowerShell Proxy Connection Issues: Step-by-Step
When PowerShell can't connect through a corporate proxy, you'll often see errors like Unabl...
WireGuard Handshake Not Completing: NAT Troubleshooting Guide
You've set up WireGuard, but the handshake never completes. The peer shows no latest handshake, a...
Fix Windows Activation Dependency Conflict Error
You may see a Windows activation error that mentions a "dependency conflict" or "dependency servi...
Fix Chrome Proxy Authentication Failed Errors
When Chrome shows 'proxy authentication failed' or 'ERR_PROXY_AUTHENTICATION_FAILED', it usually ...
Topic paths
Quick titles
PowerShell Permission Denied: Change Execution PolicyFix Windows Update Stuck by Running Disk CleanupHow to Fix OneDrive Blank Screen by Clearing CacheWindows Defender Settings Reset GuidePermission Denied Windows Activation SolutionHow to Speed Up Windows Defender During StartupResolve Chrome Proxy Authentication FailureResolve Connection Refused in PowerShell Scripts