Q. Once again I have trouble with the Start menu not working. This time I have followed on of the instructions to recover it that points to run a troubleshooter.

I did and got following result:

“Microsoft.Windows.ShellExperienceHost” and “Microsoft.Windows.Cortana” applications need to be installed correctly.

The question is how do I correct it. There are no instructions on how to repair this problem

Answer.

I suggest you to refer to the below post.

Refer: Critical Error – Start menu and Cortana aren’t working. We’ll try to fix it the next time you sign in.

If the issue still persists, refer to the Microsoft help article, try the troubleshooting steps suggested and check if it helps.

Troubleshoot problems opening the Start menu or Cortana