Honestly I was hoping that being able run an entire instance of Ubuntu on Windows with Win10 would obviate the need for a separate nano binary. Unfortunately when I'd tried it, the emulation/translation layer used seems to be a little slower than I'd have expected.
Saleh have you tried using this Win10 feature, incidentally? You'd probably find nano more useful with the accompanying binaries, using either that Ubuntu-on-Win10 feature, or via Cygwin which was a godsend back when I was forced into using Windows for work. Cygwin is also Feee Software as far as I know.
Unfortunately back when I was providing these standalone Win32 nano binaries, I was also accused of single-handedly destroying the GPL by distributing them, because I wouldn't come over to the accuser's house and show him every command I used to create the build, and also wash his car and take his dog for a walk.
I'll put maintaining a new win32 build on the list of things I may be able to do given additional free time; if there's an outpouring of people clamoring for this it may get done faster though.