Fix Microsoft Teams File Locked by Previous Session Error - Fix Windows Defender Dependency Conflict in Windows 10-Troubleshooting PowerShell Access Denied on Network

Updated 2026-06-13 23:43:51developer-tools
Fix Microsoft Teams File Locked by Previous Session Error - Fix Windows Defender Dependency Conflict in Windows 10-Troubleshooting PowerShell Access Denied on Network
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.