How to Fix Windows Activation Error 0xc004c003 After Motherboard Swap - How to Remove a Host Key from SSH Known Hosts-How to Fix OneDrive 404 Error When Opening Shared Files

Updated 2026-06-14 18:35:13office-tools

How to Fix Windows Activation Error 0xc004c003 After Motherboard Swap - How to Remove a Host Key from SSH Known Hosts-How to Fix OneDrive 404 Error When Opening Shared Files

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.