How to Fix Microsoft Store Error 404 (Not Found) - Fixing Token Expired Error Due to Malwarebytes and Windows Defender-Chrome Profile Sync Not Working: Post-Crash Fix

Updated 2026-06-14 03:52:08browser-issues

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.