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Fix PowerShell Startup Error: Missing .NET Framework - How to Fix Defender Can't Reach Windows Update-How to Run CMD as Administrator in Windows 11

Updated 2026-06-13 18:27:29windows-fixes
Fix PowerShell Startup Error: Missing .NET Framework - How to Fix Defender Can't Reach Windows Update-How to Run CMD as Administrator in Windows 11
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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