Hardware⏱️ 2 min read📅 2026-05-29

How to Fix: PC 'randomly' restarting w/o blue screens after installing Windows

Random PC restarts after installing Windows 11 may be caused by overheating or power supply issues.

Quick Answer: Check the power supply unit (PSU) for any signs of wear or malfunction, and ensure proper airflow around the system to prevent overheating.

📋 Table of Contents

  1. 🛑 Root Causes of the Error
  2. 🔧 Proven Troubleshooting Steps
  3. 💡 Conclusion

The issue you're experiencing with your Windows 11 installation, where the PC randomly restarts without blue screens and is accompanied by Kernel-Power events in the Event Viewer, can be attributed to several potential causes.

🛑 Root Causes of the Error

  • Overheating components, particularly the CPU and GPU, can cause the system to restart unexpectedly.
  • Insufficient cooling or a malfunctioning heat sink can lead to increased temperatures, triggering the system to shut down.
  • Memory issues or instability in the RAM can also result in random reboots.
  • BIOS updates can sometimes introduce compatibility issues with certain hardware components.

🔧 Proven Troubleshooting Steps

Method 1: Cooling System Optimization

  1. Step 1: Ensure that your cooling system is properly installed and functioning correctly. Check the CPU and GPU temperatures to ensure they are within a safe range.

Method 2: RAM and BIOS Configuration

  1. Step 1: Verify that your RAM is properly seated and not loose. If you're using a single stick, try swapping it with another identical stick to rule out any issues.
  2. Step 2: Update your BIOS to the latest version, as newer versions often include fixes for compatibility issues.

💡 Conclusion

To resolve this issue, you can start by optimizing your cooling system and verifying the RAM configuration. If these steps don't resolve the problem, it's recommended to seek further assistance from a professional or Windows support team.

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