PC Bloqué sur Écran Noir : Voici Comment Résoudre le Problème

Introduction

This tutorial provides a step-by-step guide to troubleshoot and resolve the common issue of a PC stuck on a black screen during startup. It is particularly useful for anyone preparing for the Cisco CCNA certification or anyone interested in improving their IT troubleshooting skills. By following these steps, you can effectively diagnose and fix the problem.

Step 1: Check Cable Connections

• Ensure that all cables are securely connected.
• Inspect the following connections:
  • Power cable to the monitor and PC.
  • HDMI or VGA cable between the monitor and PC.
• If possible, try a different monitor or cable to rule out hardware issues.

Step 2: Perform a Power Cycle

• Turn off your PC completely.
• Unplug the power cable from the wall outlet.
• Hold down the power button for 10-15 seconds to discharge any residual power.
• Plug the power cable back in and turn on the PC.

Step 3: Boot in Safe Mode

• Restart your PC and repeatedly press the F8 key (or Shift + F8) before the Windows logo appears.
• Select "Safe Mode" from the boot options.
• If the PC boots successfully, you may need to update your drivers or remove recently installed software.

Step 4: Reset BIOS to Default Settings

• Restart your PC and enter the BIOS setup (commonly by pressing F2, DEL, or ESC during startup).
• Look for the option to "Restore Defaults" or "Load Default Settings."
• Save the changes and exit the BIOS.
• Restart your PC to see if the issue is resolved.

Step 5: Test Internal Components

• If the above steps did not work, it may be time to check internal components:
  • Open the PC case (ensure you disconnect from power first).
  • Check for any loose RAM sticks or graphics cards.
  • Inspect for damaged capacitors on the motherboard (bulging or leaking).
• Reseat any loose components and replace any damaged ones.

Step 6: Check for Redundant Loops

• If your PC is stuck in a reboot loop, watch for any error messages on the screen.
• Disconnect any external devices (USB drives, printers, etc.) and restart.
• If the reboot loop stops, reconnect devices one at a time to identify the faulty one.

Step 7: Seek Professional Help

• If none of the above steps resolve the issue, it may be time to consult with a professional technician.
• They can perform advanced diagnostics and repairs.

Conclusion

Troubleshooting a PC stuck on a black screen involves a systematic approach, starting from checking cable connections to testing internal components. By following these steps, you can often resolve the issue yourself. If problems persist, don’t hesitate to seek professional assistance. Remember, maintaining your PC and keeping software updated are essential for preventing future issues.