I am getting bsod critical process died . I tried everything to fix it. Now when I boot it says no operation system installed. My HDD is shown in bios and was wondering if HDD or motherboard is failing.Any suggestion would greatly help. I also reset bios to default. I updated windows 10 9 days ago and it started to be very unresponsive 1 day ago .when OneDrive loaded I noticed that windows wasn't responding properly.. When I end tasked OneDrive computer worked fine. One day ago the computer started to become very slowly so I proceeded to sign off and back on . The computer became black and I had to turn it off. After I started computer again I got the bsod critical process died. I tried everything up to few hours ago I got no operation system installed.