Fortunately, we have gathered some potential causes of this error and fixes to apply whenever your PC gets frozen when it was idle.

Why does my PC freeze when idle?

You need to know what is wrong if you were using your PC, but you had to leave it to attend to something else while your PC remains idle, but upon your return, your PC is frozen. Below are some of the factors responsible for this error:

Running resource-intensive programs on a low-end GPU – One of the major reasons behind this problem is running multiple apps simultaneously or using resource-intensive apps. If you are using Windows 11 and a GPU that is not capable of handling the resolution you are trying to enforce, your PC may end up frozen when idle. Outdated Graphics Driver – If you are still using outdated GPU Drivers, it can cause your PC to freeze due to incompatibility issues. The best thing to do here is to update your GPU drivers. Limited system VRAM – Your PC can also freeze when idle if you have insufficient system RAM. In this case, extending virtual memory allocation can resolve such issues. System file corruption – At times, if your PC freezes when idle, it might be due to corrupt or broken system files. You can use the built-in tools or dedicated software to repair and restore these files.

Since you now know some of the possible reasons why the PC freezes when idle, let us proceed to how you can fix this problem.

What can I do when my PC freezes when idle?

Before trying any of the advanced solutions below, whenever your PC gets frozen when it is idle, try to perform the following preliminary checks:

Inspect your hardware for possible issues. Make sure the graphics card you’re using is a dedicated one. Disconnect all USB cables and peripheral devices. Try to restart or force shut down your PC.

Having confirmed the above checks, and none of them fixes the issue, you can explore the advanced solutions provided below.

1. Change your System’s Sleep Mode settings

Although this is not a permanent solution, adjusting your system’s sleep mode should help you keep your PC active when it’s not in use, hence making it less idle.

2. Change your system’s resolution settings

It is worth noting that Windows 11 has different hardware requirements than earlier versions and this may sometimes trigger hardware issues. Also, your screen resolution may be too high for your graphics adapter, so, try a few different resolutions to see if any of them solve the freezing problem.

3. Run the Windows Memory Diagnostic

By running this test, you’ll be able to detect any errors with your VRAM. Alternatively, you can use the Event Viewer to check the scan result in our detailed guide on Memory Diagnostic Tool mdsched.exe.

4. Update your Graphics driver

To be on the safe side, update all your graphics drivers. However, you can visit the manufacturer’s website for dedicated display drivers such as Intel, AMD, or Nvidia. If you’re concerned about picking the incorrect versions for your drivers, you can use a dedicated tool, such as DriverFix, to automatically get the right and latest driver options.

5. Perform a Clean Boot

To detect the cause of the problem, perform a clean-boot troubleshoot, follow the steps above, and then restart the computer after each action. Once you have identified the culprit, you can consider removing or disabling it. Try to work your way through the steps provided in this article one after the other to know what fixes the problem. Similarly, you can explore our dedicated guide on thorough solutions to apply if Windows 11 is not responding or is frozen for further information on how to fix the issue. If you have any questions or suggestions, do not hesitate to use the comments section below.

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