I completely get what you are saying. Hardware is out of the picture, because I have no issues on 1809. Computer works fine on 1809. Windows updates are not the issue either, since the 1903 is all up to date. Drivers could be a possibility and I use Driver Easy to update drivers.
- - - Updated - - -
Will test a clean install of 1903 on a separate partition and see how it goes overnight.
You should not use Driver Easy or any other driver updater they can install buggy driver which can cause your issue.
Do you have RDP enabled? I had the same issue and my machine was being attacked and eventually locking up. Changing the RDP port solved this.
Does your Reliability History give any indication of a problem? Using Display Driver Uninstaller [DDU] is a better option and use it in Safe Mode only.
Tried a fresh install of 1903 on a new partition. I did not install any programs, installed Windows updates and left PC on overnight. In the morning, PC had power light on, fans running but would not display anything on TV... No video. I had disabled sleep mode and also disabled hibernate. Only screen off after 10 min. The only way was to reboot PC by pressing the power button. This doesn't happen on Windows 1809.
Visit your graphic card manufacturer website to install latest version of graphic card driver. Also check Event Viewer to see if cause of the issue is logged.
That is weird where did you get the Windows 10 ISO image.
Quote
