Spectre x360-15 only starts after hard reset, otherwise 3F0 error

[Eve77]

For the past 3-4 weeks, my Spectre x360 (model 1VW22AV) blue-screens when coming out of sleep-mode and will not boot unless I do a hard reset (e.g., hold power for 5 seconds). Otherwise, I receive the 3F0 message that hardrive is not available. 

These problems might relate to Windows to because upon fresh installation, for the first few hours I do not seem to have these problems. After 6 hours or so (long enough for Win 10 to run all of their updates), the behavior starts. But, I am not 100% certain. 

Fixes: over the last 2 weeks, I have tried : 1) repair install Win 10  2) complete re-install Win 10 3) rolled back bios 4) updated bios 5) update all drivers 6) checked health of all hardware. My hardrive is a one year old Samsung Evo 970 PLus in perfect health according to Samsung and HP diagnostics. 

What is a hard reset doing that a soft reboot cannot handle? 

[ieee488]

Is Fast Startup is enabled or disabled?

https://www.windowscentral.com/how-disable-windows-10-fast-startup

[Eve77]

I disabled Fast Startup. Still getting the 3FO error. 

[ieee488]

No other idea.