How do I fix computer screen lines vertical issue?

Heya! Does anyone know how can I fix my computer screen lines vertical issues? Please do tell!
Sometimes, a simple reboot can resolve temporary glitches.
  • Check the Display Cable
  • Update or Reinstall Graphics Drivers
  • Boot in Safe Mode
  • Run a Display Test
  • Connect to an External Monitor
  • Check for Overheating or Physical Damage
  • Visit a Technician
 
To fix vertical lines on your computer screen:
  1. Restart your PC to rule out temporary glitches.
  2. Check the cable connections (HDMI, VGA, etc.)—reconnect or replace them.
  3. Update or reinstall graphics drivers via Device Manager.
  4. Test with another monitor to check if it’s a screen or GPU issue.
  5. If lines persist, the screen or GPU may need repair.
 
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