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Fix Microsoft Store Error 0x80070424: Authentication Failed - npm EACCES Permission Denied: Complete Troubleshooting Checklist-Windows Activation Key Not Accepted – How to Fix

2026-06-14 05:23:50
Fix Microsoft Store Error 0x80070424: Authentication Failed - npm EACCES Permission Denied: Complete Troubleshooting Checklist-Windows Activation Key Not Accepted – How to Fix

Result check

  • Keep one change per test run so you know which step helped.
  • Undo temporary changes after the issue is confirmed.

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