Hi my name is ***** ***** I will be the expert working with you today to help resolve your problem.
When did you upgrade to Windows 10.
do you get any error
Push and hold down the power button on the windows 10 computer when the computer is on it will shut down then you wait for 3 mins and power it back on. Let me know if it goes to the desktop windows screen on you get any error.
on which screen are you in there.
can you take a picture and post it here
when you bring the mouse cursor to the start menu button does it keep on spinning round and round.
let me know the make and model number of the computer we can try running factory restore if you have backed up your data.