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Fix PowerShell Service Unavailable After Update - Resolve npm command not found on Ubuntu-OBS Black Screen on Windows 11? How to Fix Permission Denied

Updated 2026-06-13 18:59:50cloud-software
Fix PowerShell Service Unavailable After Update - Resolve npm command not found on Ubuntu-OBS Black Screen on Windows 11? How to Fix Permission Denied
Before changing system settings, save your work and note the exact error text so you can compare results after each step.

Extra verification checklist

  • Restart the affected app after changing permissions or configuration files.
  • Test the same workflow in a clean browser profile or a temporary user account.
  • Compare the result on another network if the error may be connection related.

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