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Home / developer-tools / Fix Windows Defender Error 0x80073b01 (Crash on Startup) - Fix Command Prompt Freezing When Typing in Windows-Fix Windows Defender High CPU: Step-by-Step Guide

Fix Windows Defender Error 0x80073b01 (Crash on Startup) - Fix Command Prompt Freezing When Typing in Windows-Fix Windows Defender High CPU: Step-by-Step Guide

2026-06-14 04:36:27
Fix Windows Defender Error 0x80073b01 (Crash on Startup) - Fix Command Prompt Freezing When Typing in Windows-Fix Windows Defender High CPU: Step-by-Step Guide

Result check

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