Black Screen After Running Windows Memory Diagnostic: 2 Fixes

Encountering a black screen after running Windows Memory Diagnostic can be frustrating. This guide offers solutions to resolve this issue and get your computer back up and running.

Black Screen After Windows Memory Diagnostic

Windows Memory Diagnostic is a helpful tool, but sometimes it causes unexpected problems like a complete black screen. One user reported:

"After running Windows Memory Diagnostic on Windows 11, my PC froze, requiring a hard power-off. Now I have a black screen, and even the BIOS won't load. I've cleared the CMOS multiple times, but nothing changes. All internal lights are on, but there are no error lights on my motherboard (Rog strix Z-390-F gaming). My RTX 4070 TI graphics card and power supply are brand new."

This isn't uncommon, and if you're facing a similar problem, try restarting your computer first. If that doesn't work, follow these steps:

Method 1: Check Hardware and Power Connections

A black screen after Windows Memory Diagnostic, especially if the BIOS won't load, often points to a hardware problem. Check these:

• Power Connections: Ensure all power cables are securely connected. Loose connections, damaged cables, or faulty ports can cause black screens. Consider trying a different power supply or cables.
• Graphics Card: If you have a dedicated graphics card (not integrated), reseat it. Also, verify its compatibility with your motherboard.
• Motherboard: Inspect the motherboard for any signs of damage or burning. If it's under warranty, contact the manufacturer. Otherwise, repair costs may apply.

If the problem persists after these checks, seek professional help for further hardware diagnostics.

Method 2: Reinstall Windows

If hardware checks don't solve the black screen, reinstalling Windows might be necessary. This will erase all your data, so back up your files first if possible. If your computer won't boot, use data recovery software like MiniTool Power Data Recovery (advanced edition required for bootable media creation).

Step 1: Recover Your Data

MiniTool Power Data Recovery allows you to create bootable media. Boot from this media (after changing the boot order in BIOS) to access your files. Select the drive containing your data, scan, and recover your files.

Step 2: Reinstall Windows

Once your data is safe, create Windows installation media (USB drive or DVD) using the official Microsoft Media Creation Tool on a working computer. Connect the media to your computer, change the boot order in BIOS, and boot from the installation media. Choose the "Custom: Install Windows only (advanced)" option to begin the reinstallation.

Conclusion

Resolving a black screen after Windows Memory Diagnostic requires careful troubleshooting. By following these steps, you can hopefully restore your computer to working order. Remember to always back up your important data regularly.

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