Couldn't install react native for windows...serious help needed

[jeswinalex]

Error: spawn cmd.exe ENOENT
Process.ChildProces.handle.onexitit <internal/child_process.js:229:19>
at onErrorNT <internal/child_process.js:406:16>
at process._tickCallback <internal/process/next_tick.js:63:19>
Emitted 'error' event at:
at Process.ChildProcess.handle.onexit <internal/child_process.js:235:12>
at onErrorNT <internal/child_process.js:406:16>
at process._tickCallback <internal/process/next_tick.js:63:19>