munireh :
I have a U410 ideapad lenovo laptop. when I press the power button to turn on my laptop, the windows does not come up and the screen becomes black. Finally I am obliged to press the power button to turn of my laptop by force. After few seconds when I turn on it again, the windows comes up slowly. Every time that I want to turn my laptop on, I must turn it off by force. I want to know what the problem is.
I'm experiencing the same problem. It won't wake up after I've closed the lid (put it to sleep), or shut it down properly. It'll only start up if I hold the power button down until the it completely turns off. It's really strange, and it's driving me crazy. Ultimately, I think it has something to do with the fact that I'm running Windows 10, which is not supported on this laptop. For that reason, there are no drivers that might fix it.
Is your laptop running Windows 10 perchance? I know that the number of customers who are running the laptop in Windows 10 might be very few, but I'd be interested to see if anyone else is experiencing the same problem as us...