I recently bought a Lenovo V570 laptop and installed Windows 7 Professional 64-bit SP1 on it. I've found that whenever I turn the laptop off, the screen turns off but the laptop is still turned on; I then have to press the turn off button for five seconds.
If I put the laptop to sleep, I cannot wake up my laptop. I have to turn it off by pressing the button for five seconds and start it up again.
Any ideas?