I'm not sure if this is the proper place to post this, but whenever my PC is left idle for more than 8 or so hours, it will randomly black screen with no cursor. CTRL ALT DEL does nothing, CTRL Shift ESC does nothing and the only way to fix it is to hard reset my computer. It is happening on almost a daily basis now and I really want to try and fix the issue before resorting to a fresh install of windows.

It seemed for a while like a explorer.exe failure, and when the task bar and windows icon become unresponsive, if I kill explorer, I can occasionally make it black screen. I have tried almost every explorer crash fix I could find and it is still happening with the same frequency. I have tried sfc /scannow, I've tried the registry hacks to delete explorer from Image File Executable Options, I've updated drivers and nothing has prevented or altered the consistency of black screens.