How to Fix Windows Defender Update Error 0x80070643 - Fix Microsoft Teams Microphone Not Working in Windows 11-Fix Microsoft Store High CPU Usage & Error 0x80073cf0

Updated 2026-06-14 10:13:07browser-issues
How to Fix Windows Defender Update Error 0x80070643 - Fix Microsoft Teams Microphone Not Working in Windows 11-Fix Microsoft Store High CPU Usage & Error 0x80073cf0
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.