I’m having exactly the same problem. Downloaded and installed the latest Windows 10, yesterday (2019-10-19), along with the latest everything else. There is no way to rename the project when you click the “Create Project” button. All you can do is name the parent folder into which the pre-named project (with inadmissible characters) should be installed. So yes, this is kind of a big issue and no, it has not been resolved in this thread.