There is a way how to install V lang on Windows using Scoop installer. I prepared the manifest myself and put it to bucket maintained by me.
scoop bucket add scoop-littleli https://github.com/littleli/Scoop-littleli.git
scoop install vlang
There is also an option to bootstrap V lang using llvm-mingw
which contains stable Clang. I successfully recompiled V lang with it.
scoop install llvm-mingw
and of course then (in appropriate directory):
make.bat -clang