Unreal crashes seconds after right clicking anything

Using 4.20. No matter what I do–no matter how many times I reinstall things, move things around, verify, fix things, use different projects, use blank projects–within seconds of right clicking anything in the editor viewport, Unreal Engine crashes. I have been trying to fix it for weeks.

Hello,

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https://epicsupport.force.com/unrealengine/s/

Thanks