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Fix Windows Defender Performance Issues After Update - Microsoft Store Won't Open? Here's How to Fix It-Troubleshooting Microsoft Store 504 Server Error

2026-06-13 15:20:53
Fix Windows Defender Performance Issues After Update - Microsoft Store Won't Open? Here's How to Fix It-Troubleshooting Microsoft Store 504 Server Error

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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