Hi Pratik, I won’t be able to send the crash report now as I don’t have the computer at hand. As for reproducing the error no certain action induces it as already said. Sometimes turning on the viewport denoiser induces that, otherwise whatever other action, like ad an object, assign a material, etc. And as said this causes an immediate shutdown of the computer

Hi, thanks for clarifying. Please check again factory preferences: Edit → Preferences → Save & Load → Load Factory Preferences

Also texture(s) are missing, could you pack them in Blend file and post .blend file here (found this on Wohnung Elisenstr umriss material)

• First pack textures in your blend file: File → External data → Pack resources
• Save file: File → save

As for reproducing the error no certain action induces it as already said.

Crash logs will be useful in that case but I will wait :)

I did already rest the preferences to factory preferences, with no effect I’ll try that once more and tell you the outcome. The file that I sent you did not have textures. A former version of it was crashing and I thought that this was caused by the the textures. This is why I redid the modelling, first without textures and it is still crashing without them

If some textures are in it they come from the archipack addon. I’ll send the file later on with the textures inside and the crash report

I just started a new model, a lamp standing in a room (cube) using factory settings (no addons active), reducing maximal light bounces to 4 and turning on adaptive sampling. All went well until I turned on denoising in the viewport using cycles. It immediately crashed the whole computer, therefore there is no crash log file.

Hi, still no crash here on master and 2.93.5. Which object you choose to perform boolean operation on Window?

I have seen similar crash report before but has been closed because of no activity: T89370: Blender 2.93 crashes instantly when trying to open older complex file made in 2.92 !!!

It immediately crashed the whole computer, therefore there is no crash log file.

This may be driver related. Please try to upgrade your graphics driver: https://docs.blender.org/manual/en/dev/troubleshooting/gpu/windows/nvidia.html

The window for teh boolean operation was Window.004
I updated the Graphic card driver and the Bio driver before I posted this task. This did not make things better.
I meanwhile updated to the latest stable Blender version 2.9.3.6. The same file that you have does not render at all neither at viewport nor in the render view when the denoiser (Optix / Cycles) is turned on.

BTW the file was created with 2.93.5

it turned out the Viewport denoising is the main culprit, starting from version 2.95. it suffices to turn on to kill the computer. This does not happen with 2.93 and it happens even worse with 3.0