How to Fix SQLite Database Is Locked Error - How to Fix Windows Defender Update Error 0x80240016-Fix Windows Security Service Failing to Start on Startup

Updated 2026-06-13 15:57:52office-tools
How to Fix SQLite Database Is Locked Error - How to Fix Windows Defender Update Error 0x80240016-Fix Windows Security Service Failing to Start on Startup
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.