My laptop won't power on after installing windows 10. While it it was on Windows 8.1 it worked normally and while I installed Windows 10 it worked good for 2 days and it suddenly switched off like a desktop PC when removed the power supply. After that when it turned on I tried to check for the error and found out that it was a critical kernel power error and didnt had time to copy the information as it turned off again and it turned on two times after that, it boots up and comes to the lock screen and turn off suddenly. Now it won't even turn on tried to keep it on charge for a day removed battery and tried pushing power button for 30 sec and plugged in without battery no use.
My laptop was Lenovo z510 i5 4200 gt 740m 8gb ram and 1tb hdd. Also tried removing and reconnecting hardware but no use pls help me out.