Can't open windows menu, it's stuck on a loading screen

[Guest To345]

Hi, last night i updated my pc and after that i can't acces the windows menu or the search bar.if i click on either symbol or the windows key, my whole screen blurs out, a loading circle apears on the center, and the only ways to remove it are to either press the windows key again, or open the alt-supr menu.i've been using windows 10 for years, and the update was a normal security update i belive.this is th first time it's happened, and i cant find any similar issues on google.the screen looks like this, and i can't click anywhere on the screen

 

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