The one such issue most commonly faced by Lenovo laptop users is, the laptop won't turn on or boot. In some cases, you might see a blinking cursor on the screen but the issue is the same, it doesn't boot at all. The primary cause of this issue is corrupted bios or improper update to bios.
May 26, 2010 · How annoying it is when your computer won’t start and you can see the computer power button flashing? One minute they are fine, and the next thing you know it is basically dead. I especially hate it when you press your power button and nothing happens. You can see the computer Power light blinking but nothing comes up on the screen.
Lenovo desktop computer won t boot up
Two ways to set laptop/desktop computer to boot from USB drive. When you're locked out of computer forgot password, or got problem to start your computer, you may need to start computer from a USB to unlock computer or repair/reinstall system.
I recently installed windows 8 on a new Lenovo N585 Everything seemed to go fine, but My computer now has problems booting up. When I turn the power on, I will either get a blank screen with nothing, or it will boot through the bios, then the windows 8 flag will come up and stay on that screen.
Try disconnecting everything from the motherboard except the PSU, the RAM and the video card (if not using onboard video), i.e. HDD, ODD, any other cards etc. and see if it starts and if you can get into BIOS. If the PC still doesn't start, try the paper clip test to see if the PSU starts OK. Here is a link that shows how to do it.