Move C:$\backslash$myfolders$\backslash$Help$\backslash$mui so it is under C:$\backslash$myfolders$\backslash$backup $($move the entire directory, not just the contents$).$

Delete all files in C:$\backslash$myfolders$\backslash$backup that contain the letters $"$on$"$ in the filename.

How many files remain in C:$\backslash$myfolders$\backslash$backup$?$