I been bugging with this problem for some hours now. And I couldn't find the answer on google so I try it here.
The problem is that when I run emacs in cygwin in
-nw mode characters like åäö doesn't come out normally. However it is perfectly normal when I type those character in mintty terminal. The answer that I found on google is that I should type
M-x standard-display-european however emacs doesn't have that option. It only found