So basically windows updates and my laptop didn't take it well, I've gone through and I tried to fix it, but when I thought I got it to work, it shut off. ever since then, every time I try to turn on my laptop, it'll flash to the Lenovo screen for a few seconds before turning off and then turning on to flash to that screen again. I've taken out the battery and tried to run it on just the power cord, and I've taken out the RAM to no avail. can somebody help me?