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Fix Windows Defender Not Starting After Update - Fix 504 Error in Microsoft Store Network Issue-Fix Windows Search 404 Error by Rebuilding the Index

2026-06-13 18:20:01
Fix Windows Defender Not Starting After Update - Fix 504 Error in Microsoft Store Network Issue-Fix Windows Search 404 Error by Rebuilding the Index

Result check

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