Laravel new crash

Trying to install a new Laravel project and the installation is crashing after asking for the test unit, which i selected Pest.

PHP Fatal error:  Uncaught Error: Call to undefined function Laravel\Installer\Console\mb_rtrim() in C:\Users\dkolb\AppData\Roaming\Composer\vendor\laravel\installer\src\NewCommand.php:162
Stack trace:
#0 C:\Users\dkolb\AppData\Roaming\Composer\vendor\symfony\console\Command\Command.php(279): Laravel\Installer\Console\NewCommand->execute()
#1 C:\Users\dkolb\AppData\Roaming\Composer\vendor\symfony\console\Application.php(1029): Symfony\Component\Console\Command\Command->run()
#2 C:\Users\dkolb\AppData\Roaming\Composer\vendor\symfony\console\Application.php(316): Symfony\Component\Console\Application->doRunCommand()
#3 C:\Users\dkolb\AppData\Roaming\Composer\vendor\symfony\console\Application.php(167): Symfony\Component\Console\Application->doRun()
#4 C:\Users\dkolb\AppData\Roaming\Composer\vendor\laravel\installer\bin\laravel(13): Symfony\Component\Console\Application->run()
#5 C:\Users\dkolb\AppData\Roaming\Composer\vendor\bin\laravel(119): include('...')
#6 {main}
  thrown in C:\Users\dkolb\AppData\Roaming\Composer\vendor\laravel\installer\src\NewCommand.php on line 162
~~~