Default Window Size

[Sky Nerd]

Hi,
I'm a beginner at Emacs in general and installed GNU Emacs for windows not
too long ago. Whenever I start Emacs, the window is in a really weird
position: the bottom part is always cut off at the bottom of the screen.

I cannot find a way to adjust the default window size. Resizing the window
"manually" usually fixes this problem with other Windows programs, but not
Emacs.

Can someone give me simple instructions on how to change the default window
size? Even starting the program maximized as a default would be a great
help.

Thanks,
Nathan