I keep getting a Critical Error message. What should I do with it?

[Windows Central Question]

I keep getting a Critical Error message.

The message states that the Start Menu and Cortana are not working and it will attempt to fix it the next time I restart. When I do restart, I get the message again. I restart for a second time and everything works, until the next time I start my computer. Then it starts all over again. Is there a fix for this?