Instalação do ionic no windows 7

Alguém pode me ajudar?
Quando vou instalar ocorre o erro abaixo:

C:\\>npm install -g ionic cordova
npm WARN deprecated node-uuid@1.4.8: Use uuid module instead
C:\\Users\\Usuário\\AppData\\Roaming\\npm\\cordova -> C:\\Users\\Usuário\\AppData\\Roaming
\\npm\\node_modules\\cordova\\bin\\cordova
C:\\Users\\Usuário\\AppData\\Roaming\\npm\\ionic -> C:\\Users\\Usuário\\AppData\\Roaming\\n
pm\\node_modules\\ionic\\bin\\ionic
C:\\Users\\Usuário\\AppData\\Roaming\\npm
+-- cordova@7.0.1
`-- ionic@3.12.0

npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@^1.0.0 (node_modules\\io
nic\\node_modules\\chokidar\\node_modules\\fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@
1.1.2: wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"x64"}
)