Unity freezes my whole PC

Unity freezes my whole PC, causing me to restart my whole computer. It happens in editing mode and in play mode. It only happens in one scene, there’s isnt a lot more then other scene’s I make, so the amount of objects isn’t a problem. Is there anyone with the same problem? Or does anyone has a solution? This keeps happening, I don’t get any errors or messages when I have restarted.

I have the exact same problem, it can happen even when Unity does not have the focus. I can't kill the process, I can't open a new tab in Firefox etc. Sometimes I can't even reboot (the logout screen stay forever) and have to do a hard reset.

1 Answer

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This can happen when Unity is baking the lights; the processes use a huge amount of memory and can make it impossible to use the computer at all. Setting up the GI cache (in Edit/Preferences) to the maximum would help with that.

How much memory do you have? How much memory did you allocate to the pagefile (Virtual memory in 32-bit version of Windows - Windows Server | Microsoft Learn)? Setting up a (very) large pagefile would help a lot too.

I have 10 GB of RAM in side my PC, but I fixed the problem by copying everything from the scene where everything was stuck, then dropping it into a new scene. That worked for me.

Don't forget to clear the gi cache time to time also.

How is it a hardware question? (Except for the fact that I have a toaster for a computer)