Problems with "yo code" -> stderr: "'powershell' is not recognized as an internal or external command,\r\n"

Problems with "yo code"

Well, this error may looks silly, but I spent a lot of hours looking for the answer 

after excecuting the command "yo code"
I got this error:
  c:\Users\blalbalba\npm\node_modules\yo\node_modules\execa\index.js:347
    thorw err;

and a lot of more things. The mos important was this error line

stderr: "'powershell' is not recognized as an internal or external command,\r\n" +     'operable program or batch file.\r\n',


You only need to add it to your environment variables, just follow the following two simple steps:
1.write env in the search bar

or Right click start button -> System -> Advanced system settings -> Environment Variables... -> Select PATH
2. click on the new button and add the following path:

C:\WINDOWS\System32\WindowsPowerShell\v1.0\

or %SYSTEMROOT%\System32\WindowsPowerShell\v1.0\

Hope that this solution works for you too! Good Luck!

kind regards!

Aleja :)