100 build errors on an empty project

I’m working on my first c++ project and noticed a long list of system file errors so I restarted a fresh project to see if it was my code and the errors come after I hit rebuild.

I have tried generating visual studio files
I can’t verify ue5 installation, it’s greyed out.
Anyone know the cause?

I was adding code into the blank c++ project until the errors returned, and when they did I removed all the code and then errors stayed. I was stuck here, but I have since fixed it and the cleared project is back to being error free. I guess I can again begin the process of bringing code over from my project into the blank bit by bit and see what is causing the errors.

I might update thread further if I have something giving me trouble in this process.