Fix Microsoft Teams High Memory and CPU Usage - Fix Windows Defender Virus Definition Update Failed-Fix RDP Port 3389 Already in Use Error

Updated 2026-06-14 00:55:10cloud-software
Fix Microsoft Teams High Memory and CPU Usage - Fix Windows Defender Virus Definition Update Failed-Fix RDP Port 3389 Already in Use Error
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.