I’ve replaced cmd.exe with powershell.exe in a simpler way and hope it can help.
I’m using webstorm2017 and Win10 os.
1.Find the exact location of powershell.exe.In mine and I believe in most computers the location would be C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe.Copy the whole path into your clipboard.
2.In your IDE open File=>Setting=>Tools=>Terminal, and paste the path into “Shell path” blank.
3.Restart the IDE and everything would be ok.