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On ComputerDok , we get a lot of readers asking about horizontal lines on the laptop screen in Windows 10 and Windows 11 . These lines can be caused by anything from outdated graphics drivers and wrong display settings to a loose display cable or a failing LCD panel. In this guide, you'll get a clear, step-by-step plan to diagnose and fix horizontal lines on your laptop display—starting with simple software checks, then moving to hardware troubleshooting only if needed. In this guide Quick Diagnosis: Hardware or Software? Software Fixes for Horizontal Lines Hardware Checks & Fixes When to Repair or Replace the Screen FAQ: Horizontal Lines on Laptop Screen Quick Diagnosis: Hardware or Software? Before trying fixes, run these two quick checks to understand whether your laptop display horizontal lines are likely hardware or software related. 1. External Monitor Test Connect your laptop to an external monitor or TV usin...

Windows 11 Black Screen After Update: 10 Fixes That Work Last updated: August 12, 2026 A black screen after a Windows 11 update can be caused by a graphics driver problem, incorrect display output, Windows Explorer, a failed update, or a startup problem. It does not automatically mean your graphics card or monitor has failed. Microsoft lists incompatible drivers and incomplete updates among the causes of blank-screen problems after updates. This guide gives you 10 fixes, starting with the quickest solutions and moving to Windows Recovery options if the basic fixes do not work. Quick Answer Press Windows + Ctrl + Shift + B . This resets the graphics driver without restarting your PC. Your screen may flicker, and you may hear a short beep. Wait a few seconds to see whether the display returns. If that does not work, press Windows + P to check the display output. If you still see a black screen, continue with the fixes below. Table of Contents Why Windows 11 Shows a Black Sc...

Last updated: August 30, 2026 Display problems are common after a Windows update, graphics driver change, hardware upgrade, or computer move. You may see a black screen, flickering display, wrong resolution, distorted graphics, random crashes, or a message that Windows cannot start the graphics device correctly. The problem can come from Windows, the graphics driver, the graphics card, monitor, display cable, power supply, or overheating. This guide explains how to troubleshoot common display problems in Windows 10 and Windows 11 before replacing hardware. Common Windows 10 and Windows 11 display problems can often be traced to drivers, cables, settings, overheating, or hardware. Table of Contents Common Display Problems Before You Start Restart the Computer Check the Monitor and Display Cable Check Windows Display Settings Check the Graphics Driver ...