Install Cygwin, and keep installer around.
Then run
setup-x86_64.exe -q -P wget -P gcc-g++ -P make -P diffutils -P libmpfr-devel -P libgmp-devel -P libmpc-devel
Launch cygwin console
g++ -v
many thanks, i have done this
thanks a lot. solved my problem
thank you very much. super helpfull