

Settings app is blocked due to security reasons – Under certain circumstances, the default security option might facilitate the malfunctioning of the Settings app by blocking the menu due to security reasons.

If this scenario is applicable, you should be able to resolve the issue by reinstalling and re-registering all UWP applications active on that user account. This is commonly reported to occur after a security scan reveals some inconsistencies with the suite of UWP applications. Unregistered Settings application – As it turns out, this particular issue can occur due to a sudden de-registering of the Settings app.
