Bug Crash on Launch-How to recover project?

So catch 22 situation.
Running Unity 2021.1
Accidentally enabled DX12 in Project settings but now I crash on launch.
Tried deleting Library folder same thing.

Need to recover project!

 

I'd use source control to revert whatever project settings file this is saved in. But assuming you're not using source control, I'd try launching the editor with the -force-d3d11 command line argument. Never tried it with the editor (works fine on builds), but the documentation says it works.

https://docs.unity3d.com/Manual/CommandLineArguments.html

 

Ok great tip, thanks!