Windows 10: problem solving screen not coming on at start up

didnt know where to put this as im not sure of the problem

ive just upgraded a few pc parts and was hoping the problem might just go away, it didnt not suprisingly probably as i didnt upgrade the gpu or the monitor,

whenever i start the pc up after its been turned for a while the monitor dosent start up properly, somtimes just unpluggining it works, sometimes i have to unplug it several times, or restart the pc a couple of times

monitor is connected to the gpu using DVI ive tried changing that to hdmi but when i do the resolution is wrong 800x600 i think and cant change it as the display resolution is greyed out

:)

 

5 min delay on cold start between login screen and bg screen

After overnight looks

 

5 min delay on cold start between login screen and bg screen

Ok, let the powershell command run overnight
If the command didn't solve the problem, the try these steps in order:

1. Disable superfetch service
   • Empty the following folder c:\Windows\Prefetch\
   • Restart the computer
   • Si ça ne marche pas, passer à l'étape 2;
2. Disable the AppXSvc from the registry: change the "Start" key value from 3 to 4 (see the screenshot)

 

5 min delay on cold start between login screen and bg screen

I think one of this suggestions may solve your problem, but try first with the powershell command. let it run overnight. If no result, then continue with the next steps ...