On yesterday, I installed HC 5.0 on my Windows 10 64bits for the first time.
I skipped 'whitelisting the autoruns' and 'recommended settings'. Yes, I forgot to mention that I made a restoration point.
Then, I just view the left panel, all was grewed except the first one 'SRP' , on the right panel, the only thing I remember was, all was on OFF.
I clicked several times on Switch ON/OFF SRP and the same with Switch ON/OFF Restrictions. The goal was to see what was the modified settings in both panel.
Then, I click on firewall with the same goal, I didn't click on any button, I only close this window.
When I close HC, I got automatically a screen that the new settings will be on the next boot. At that moment, I didn't understand as my purpose was only to see HC functions and as I didn't click on 'Apply settings' red button, I thought I was safe, with the settings disabled, but it was the opposite.
Anyway, when I booted my computer, I got a blue screen :"Inaccessible boot device". I tried to restore previous the HC restoration. The restoration was successfull, but I got this error message with the blue screen. Even Safe Mode is not working. The only thing is working is the Command Prompt (CMD.exe).
PS: Before installing HC, Smartscreen, Windows Defender, and Windows Update was already disabled on my computer.
It will be great that you add a nag screen when click on Switch ON/OFF SRP and Switch ON/OFF Restrictions to prevent these modifications with new settings. Also when you close HC, another nag screen, with the choice to cancel these settings if needed and to apply these settings, and not automatically as it's working. At that moment, it was too late to revert settings.
Hopefully, I've just fixed my troubleshoot.