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Home / developer-tools / Fix Windows Defender Connection Timeout Error 0x80070422 - Troubleshoot OneDrive Error 0x8004de40 with High CPU Usage-Troubleshoot Error 0x80073cf9 in Microsoft Store

Fix Windows Defender Connection Timeout Error 0x80070422 - Troubleshoot OneDrive Error 0x8004de40 with High CPU Usage-Troubleshoot Error 0x80073cf9 in Microsoft Store

2026-06-13 23:14:24
Fix Windows Defender Connection Timeout Error 0x80070422 - Troubleshoot OneDrive Error 0x8004de40 with High CPU Usage-Troubleshoot Error 0x80073cf9 in Microsoft Store

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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