hello ,i have a lenovo g50-30 been with it a year now and started having frequent errors and blues screen ,,i decided to install windows 10.during windows 10 installation an error emerges: kernel security check failure.i have tried installing other windows
versions but the same error emerges.if it completes installation ,,blues screen occurs frequently with random error codes.i checked my ram and hard disk and they are working fine,the only thing that failed in my laptop are the speakers which only produce sound
when i press function keys at startup but later when windows runs they dont function.i tried switching a hard disk from another laptop that had a working windows works fine on my laptop without any errors but if i try to upgrade the windows and make an installation
the error emerges .please help me to find out what the problem is .
