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Fix Windows Defender Network Connection Issues - Fix Windows Update Stuck on 'Checking for Updates' Due to DNS-Troubleshoot OneDrive Sync Error 0x8004de40

2026-06-16 11:47:22
Fix Windows Defender Network Connection Issues - Fix Windows Update Stuck on 'Checking for Updates' Due to DNS-Troubleshoot OneDrive Sync Error 0x8004de40

Result check

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