Fix Microsoft Store Not Opening After Reset Settings - How to Fix GPG Invalid Signature Error in Ubuntu apt update-Installing OneDrive for All Users Using Offline Installer
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.