If you can see the vertical blue line in the screenshot, then its software related otherwise its hardware breakdown. Head to File manager > Pictures and find the relevant screenshot in the folder. Hit Windows+Print Screen keys to take a screenshot. If it’s Windows bug, then the blue line will appear on the captured screenshot too. As you may know, a screenshot captures whatever visuals are displaying on the screen at a time. This is the easiest way to find the origin of the problem. Try both options to make sure what exactly you are dealing with. You can determine whether its software related or hardware issue in couple of ways. The image below shows a blue line appearing randomly on my HP Spectre x360. To fix the vertical blue lines, you need to find the root cause of it. And after inspecting it, what actions can be taken to fix it up.

First, one needs to know whether it’s software related or hardware breakdown. Many Windows users are complaining about vertical blue lines appearing out of nowhere on their laptop or PC screens.

In this post, I’ll talk about one of the infamous Windows bugs that carry a potential of ruining your experience on a shiny new laptop.

Elvui update hiding parts on screen