How to Fix Command Prompt File Locked Error in Windows 10 - PowerShell Could Not Establish Trust Relationship Fix-Fix Windows Update Error 0x800f0986 in PowerShell

Updated 2026-06-14 21:44:05security-tools

How to Fix Command Prompt File Locked Error in Windows 10 - PowerShell Could Not Establish Trust Relationship Fix-Fix Windows Update Error 0x800f0986 in PowerShell

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.