Why is UTAU suddenly Japanese if it was English before?

So, my father installed UTAU for me now, after Yuunarii's tutorial. It was English the first time I started it, I then logged out of the laptop, later logged in again, opened UTAU, but is it now Japanese? (where files, edit, view, etc. Are located)

I would be happy to get answers: 'D

The program language will have adjusted automatically due to the country / region setting. I don't know this program, but maybe it works without changing the region. Maybe it is even possible to just change the language in the program itself.