Lightroom Classic crashes

[BarbLM]

Using the latest version 14.2 of Lightroom, it keeps shutting down on its own.  I use Windows 10 Pro and Nvidea GeForce GTX 645, 32mg of ram on a i7-4770 CPU 340 GHZ.  When I have the graphics processor set to Auto the crashes begin.  When I turn it off as some suggest, I'm now getting notifications that my PC is not up to date.  This problem has occurred with earlier versions of  LR and turning off the graphics processor helps but has always resulted in a slower running app.  The difference now are the warnings from Adobe about the outdated PC to run LR.  I'm at a loss. 

Does Adobe support,  anybody,  have any ideas for a remedy?

[Per Berntsen · Accepted solution]

The Nvidia GeForce GTX 645 is 12 years old, and doesn't meet the LrC system requirements.

It only has 1 GB RAM, the minimum required is 2 GB.

Even 2 GB is very little, I would recommend 8 GB or more.

Many actions in LrC are now GPU assisted, and Denoise runs entirely in the GPU.

[GoldingD]

This goes back many LrC versions, back to when using the GPU first started showing up as an option. At some point after the initial inclusion by Adobe for that option, older GPU's showed crashes if using that option. I am surprised it has taken till v14.2 for that to appear. I would expect a crash with that option on for any NVIDIA older (an in fact as old) than a 800 model. (I have no idea about AMD units)