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Home / developer-tools / Fixing Command Prompt Proxy Errors: Step-by-Step Guide - Resolve Windows Defender Crash Code 0x80073b01-Resolve Microsoft Teams Access Denied Quickly

Fixing Command Prompt Proxy Errors: Step-by-Step Guide - Resolve Windows Defender Crash Code 0x80073b01-Resolve Microsoft Teams Access Denied Quickly

Updated 2026-06-14 11:58:34developer-tools
Fixing Command Prompt Proxy Errors: Step-by-Step Guide - Resolve Windows Defender Crash Code 0x80073b01-Resolve Microsoft Teams Access Denied Quickly
Before changing system settings, save your work and note the exact error text so you can compare results after each step.

Extra verification checklist

  • Restart the affected app after changing permissions or configuration files.
  • Test the same workflow in a clean browser profile or a temporary user account.
  • Compare the result on another network if the error may be connection related.

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