Very important to treat immediately
How to fix settings that won't open in Windows 10
The Settings app is crucial for configuring and managing various aspects of Windows 10. You’ll need it for everything from uninstalling apps, to adjusting device-related settings, to installing operating system updates.
Of course, you can still use the Control Panel in Windows 10. But Microsoft continues to phase out the program in favor of the Settings app, so it no longer offers full control over your PC.
So, if the Settings app is not opening on your Windows 10 computer or is crashing rapidly, you need to fix it right away. The list of troubleshooting tips below should help you with that.
