Windows 10: Screen going momentarily black every 30 seconds - some clues only

Hi,


I have a Windows 10 machine. It's always run nicely until at some point recently that I can't quite pinpoint. I would have noticed this before because it's too obvious. Could be the last update.


Every 30 seconds or so the screen goes momentarily blank for a fraction of a second. Maybe a 20th of a second?


It cannot be cables because it happens on both monitors at the same time. It even happens if I unplug one monitor and observe the other and then do the opposite.


It does this irrespective of any software I'm running which is usually only browser anyway.


I have some clues:

• At the instant of the black flash Antimalware Service Executable jumps to the process with the highest CPU usage on Task Manager.
• On the performance GPU tab on Task Manager there is an associated spike to 100% only on the 3D section for IntelR HD Graphics Family.
• If I go on Advanced display settings on windows it gives you a drop down at the top with Display 1 and Display 2. If I'm inspecting Display 2 and the flash happens the drop down label will flicker and reset to showing Display 1. Bizarre I know but true. It's like there's some refresh code being executed to trigger this.

Any ideas?

:)

 

Screen keeps going black for a second

Hi,

Sorry for the delay in replying.

Suggest you to follow the steps from this article to check if that helps.

Troubleshoot black screen problems: https://support.microsoft.com/en-us/help/14106/windows-10-troubleshoot-black-screen-problems

Keep us informed to help you further.

 

Screen keeps going black for a second

Hi Bob,

This issue may have occurred due to several reasons. For us to assist you better, kindly answer the following questions:

• When does your screen goes black, is it during startup, or while opening an application?
• Which build and version of Windows 10 do you have?
• Which troubleshooting steps have you done so far?

Kindly get back to us so we assist you accordingly.

 

Black Screen after Log on


Computer boots to windows log on,have no password here.After a minute on log on it go to a black screen,stays there forever. I can get to Task Manager from black Screen,lost on what to do next. Just want my Windows 10 back, not sure what caused this problem. Any Suggestion on what my next step should be?*Sad