npm ERR! Windows_NT 6.1.7601

npm ERR! argv "D:\\Program Files\\nodejs\\node.exe" "D:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js" "install" "cheerio" "-g"

npm ERR! node v6.10.0

npm ERR! npm  v3.10.10

npm ERR! code UNABLE_TO_VERIFY_LEAF_SIGNATURE

npm ERR! unable to verify the first certificate

npm ERR!

npm ERR! If you need help, you may report this error at:

npm ERR!     <https://github.com/npm/npm/issues>

npm ERR! Please include the following file with any support request:

npm ERR!     C:\Users\Administrator\Desktop\node.js\npm-debug.log

怎么解决啊。大哥们