#### composer is not recognized as an internal or external command operable program or batch file

Im trying to create a laravel project using laravel new proj_name but it shows always showing that composer is not recognized as an internal or external command operable program or batch file
i have set my environmental variable as C:UsersadminAppDataRoamingComposervendorbin; and my pathext as .PHAR;

dont where i made the mistake, it works perfectly with the same command while i work previously.
some one help me out..

Source: Laravel