yarn : File C:\Users\TECH MOON\AppData\Roaming\npm\yarn.ps1 cannot be loaded because running scripts is disabled on this
system. For more information, see about_Execution_Policies at https:/go.microsoft.com/fwlink/?LinkID=135170.
At line:1 char:1
+ yarn --v
+ ~~~~
+ CategoryInfo : SecurityError: (:) [], PSSecurityException
+ FullyQualifiedErrorId : UnauthorizedAccess
Make sure you install npm and npx, then use create-react-app your app name.