Does your Windows 11 PC keep restarting? Let's fix that frustrating problem

Experiencing a Windows 11 boot loop can be incredibly frustrating, transforming your computer into a seemingly endless cycle of restarts that disrupts productivity. When your system continuously fails to load the login screen and instead repeatedly attempts to restart, you're facing a critical technical issue that demands immediate attention.

This persistent reboot problem can stem from various causes. So, what do you do? Let's look at some ways to diagnose and resolve the Windows 11 boot loop, helping you restore your computer's functionality and get back to work.

When you are troubleshooting any problem on your PC, you should boot your computer in safe mode. If your PC is in safe mode and no longer experiences the restart loop, this means that the default Windows 11 settings and drivers aren't causing the issue. This allows you to narrow down the sources of problems causing your Windows 11 PC to crash, making it easier to troubleshoot. Here's what you need to do to boot in safe mode:

When your computer restarts, it will automatically restart in safe mode. If your computer restarting is making it difficult to follow these steps, you can also follow these steps at the sign-in screen:

Now, when your PC restarts, you will be presented with a list of options. Select 4 or F4 to start your PC in safe mode. If you need to use the internet while the computer is in safe mode, you can select option 5 or press F5.

If your automatic rebooting problem began after installing a new app, uninstall that app and monitor your PC. If you still notice your PC restarting, there's a chance that the app has infected your system settings before you uninstalled it. To fix this, you'll need to restore the system. To do a system restore, you should first boot your PC in safe mode and then follow these steps:

An overheating laptop or desktop will try to prevent damage to critical hardware components by shutting itself down. This is one of the leading causes of a Windows 11 PC getting stuck in a restart loop. If you've noticed your desktop giving off a lot more heat than usual or a laptop feeling hot to the touch, chances are you have an overheating issue.

A computer's CPU and GPU generate the most heat, so I recommend monitoring those hardware pieces to see if they are overheating. You don't need any additional software to monitor the temperatures of your GPU, as some temperature readings are built into Windows 11. Here's how to check your hardware temperatures in Windows 11:

Unfortunately, the built-in temperature reading doesn't read your CPU temperature, and you'll need to manually go into the UEFI/BIOS to check the temperature without installing any additional software. However, there's a multitude of free-to-use apps that manufacturers have developed to measure your CPU temperature, including Core Temp, HWMonitor or Open Hardware Monitor.

When you open one of these monitoring tools, you'll be able to view your PC's stats, including CPU and GPU temperatures and loads. If your CPU or GPU is running too hot, try cleaning the components to remove dust. For custom-built desktops, adding more exhaust fans to the case can improve airflow and cooling. Persistent overheating, especially in older laptops, may indicate that it's time to consider upgrading your machine.

A computer will randomly restart when it has a failing power supply unit (PSU). If you have an issue with your power supply, you'll know if your computer won't restart or turn on. In addition to causing shut-offs and restart loops, a faulty power supply can also cause a blue screen of death error. In severe cases, you might even smell a burning scent or witness smoke coming from your PC's power supply exhaust vent. If you use a laptop with PSU issues, you cannot send your computer to a repair shop or the manufacturer for repair.

Desktop PC owners have it a bit easier, assuming they have a pre-built PC that can be altered easily. If you do have a desktop, turn off and unplug your computer before going into the case to investigate if dust build-up is affecting your PSU. If your PSU fails, you must purchase and install a new one.

If your computer is stuck rebooting, you may need to boot in safe mode in order to run an antivirus application. Here's what you need to do to boot your PC in safe mode with Windows 11:

Now, your computer should act more stable after booting in safe mode, allowing you to run an antivirus scan.

If you have automatic restart enabled in Windows 11, your PC will restart every time it encounters a system failure. You can easily disable this future within the Windows 11 command prompt. Here's what you need to do:

Keep in mind this isn't a fix for the problem, but it will help you further troubleshoot the restart loop problem by disabling automatic restarts.

An issue with your Windows 11 system files may be causing your PC to constantly restart. If you think a corrupted system file is why your PC keeps restarting, there's a quick and easy fix you can do within the Windows Powershell. The System File Checker (SFC) is a built-in tool that will scan your Windows system files for corruption or any other changes. If a system file has been modified, it will automatically replace the file with the correct version. Here's how to run the SFC command:

If there's no problem with your Windows system files, after the scan, you'll see a message that says, "Windows Resource Protection did not find any integrity violations." If you instead see a message saying, "Windows Resource Protection found corrupt files but was unable to fix some of them," you should try running SFC again but in safe mode.

Your PC might be restarting itself because it doesn't have access to enough random access memory (RAM). Windows 11 may become unstable without enough RAM in your computer, causing the OS to randomly reboot. You can use the built-in Memory Diagnostics Tool in Windows 11 to check your computer for issues related to RAM. Here's what you need to do:

When your PC restarts, the Windows Memory Diagnostics Tool will check for any RAM-related issues; if the test detects an error, take note of the error code. You can check the error code online to find the correct fix for that specific error.

These are the best fixes for a computer that is constantly restarting. While you can perform these fixes at home, it might be your best bet to send your computer to a repair shop or back to the manufacturer if you continue having an issue with your Windows 11 PC being stuck in a restart loop after these fixes. It also may be time to invest in a new laptop if you are experiencing a system slowdown and random restarting on your Windows 11 PC, but I would recommend trying to fix the problem first before buying a new machine.

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