Problem with Git on Windows 10: it only presents itself as C:\WINDOWS\system32\cmd.exe now

I started using Git Bash in the beginning of the Git and GitHub Course, but when I got to the part about setting up GitHub, I noticed that I was required to go through the Learn Command LIne course before getting involved with GitHub. I worked through the Learn Command LIne course, but when I finished the last project there, Lingua Franca OFFLINE, I found that the display now only shows itself as C:\WINDOWS\system32\cmd.exe, instead of MINGGW64.

I even tried installing a new version of Git, but it behaves the same way.

Can somebody tell me what to do?