The image below shows a blue line appearing randomly on a laptop.
Try both options to verify what exactly you are dealing with.
As you may know, a screenshot captures whatever visuals are displaying on the screen at a time.
If its Windows bug, then the blue line will appear on the captured screenshot too.
Step 1: Press theWindows + Print Screenkeys together to take a screenshot of your desktop window.
Step 2: Now, navigate toWindows Explorer > Pictures > Screenshots.
Now follow the second option to confirm your findings.
BIOS is free of the Operating System and as a result, it can be helpful in such tasks.
Step 1: First off,shut down your laptopcompletely.
If its a hardware issue, then the vertical blue line will be visible.
Thankfully, its quite easy to check for an update to the latest drivers.
Step 1: Press theWindows + I keyson your keyboard toopen controls.
Step 2: Inside, switch to theWindows Updatetab on the left side.
Then, click onCheck for Updates.
Alternatively, you might manually check and update the drives from the rig manager.
Step 3: To do that,presstheWindows key + R shortcutto launch the Run dialog box.
key in in the following command and pressEnter.
Step 4: In the machine manager,expand Display adapters.
Then,right-click your graphics card deviceand selectUpdate driver.
Step 5: SelectSearch automatically for updated driver software.
Windows will automatically search online for new drivers, and then install them.
Once it is installed, you will be asked to cycle your PC.
end the window and restart the computer.
First, the blue lines may be appearing due to a loose display cable.
The cable that connects the screen to the base of the laptop usually runs through the rotating hinge.
And due to the continuous opening/closing of the hinge, the cable may need re-positioning.
However, the display cable could only be one of the possible issues.
The LCD panel might be faulty, or there might be a shorting in the laptops motherboard.
In either case, the best solution would be to visit a service center.
If your laptop is under warranty, we suggest visiting the official service center only.
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