Fix Microsoft Store App Not Opening on Startup After Update - Troubleshoot Windows Defender DNS Update Failure on Windows 10-Windows Store Download Stuck Error 0x80073cf0 Guide
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.