choco install msys2 -y or get it here pacman -S cmake gcc mingw-w64-x86_64-winpthreads-git mingw-w64-x86_64-libwinpthread-git binutils coreutils yasm git base-devel p7zip git clone https://aomedia.googlesource.com/aom mkdir build && cd build cmake.exe ../aom -G "Unix Makefiles" make -j16 ./aomenc --help ./aomdec --help