So I purchased my 9550 in June of 2016 and have had no prior hard drive issues. Randomly today when I would close my laptop, which usually puts it in sleep mode, led me to a black screen with the power light lit. I thought this was bizarre and shut down my laptop and rebooted and all was good. I did this maybe two or three times until about an hour ago I was led to a hard drive not installed screen. After trying to find solutions online I switched to AHCI mode which I soon regretted as my laptop would not boot. So I reverted the change and reset my laptop (thank god for the keep files option). I then got the error again mid install of windows and after clicking continue and pressing the power button again my laptop finished the install and is now seemingly fine. I ran the Dell SupportAssist test and it shows no issues. I then reinstalled a few pieces of software and closed my laptop to be met with the exact same issue. I’m now experiencing more weird problems as my laptop will start up and show a black screen after login. I’ve uninstalled display adapters already with no luck. 

Last night I installed a bunch of Dell updates and I am guessing that might have caused some issues but I am not certain.