How to Fix Outlook Slow Startup Caused by Large PST Files - BitLocker Service Unavailable: Check Disk and Fix-PowerShell Execution Policy Won't Change – Troubleshooting

Updated 2026-06-19 03:28:00developer-tools
How to Fix Outlook Slow Startup Caused by Large PST Files - BitLocker Service Unavailable: Check Disk and Fix-PowerShell Execution Policy Won't Change – Troubleshooting
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.