Unable to create directory

I just changed the folder so that my scene would save to a different folder, and when I pressed create scene, it said Unable to Create directory to that folder so I changed it back to what it was before and the same thing happened again. What do I do?

First…

Reboot the computer and try opening a scene from the default directory.

As for saving to new folders…

Can you describe what you did step-by-step?

I was able to create a new folder and save a new project within it from the Welcome Screen.