Fix PowerShell Service Unavailable on Windows 11 - BitLocker Setup Fails with Error 0x803100b1: Fixes-Re-register Store Apps After Restore

Updated 2026-06-14 16:45:26macos-help
Fix PowerShell Service Unavailable on Windows 11 - BitLocker Setup Fails with Error 0x803100b1: Fixes-Re-register Store Apps After Restore
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.