'CALL "C:\Program Files\nodejs\\node_modules \npm\bin\npm-cli.js" prefix -g' is not recognized as an internal or external com mand,

Error in executing npm on windows 7

C:\Users\MNE GO DIGITAL>npm
'CALL "C:\Program Files\nodejs\\node.exe" "C:\Program Files\nodejs\\node_modules
\npm\bin\npm-cli.js" prefix -g' is not recognized as an internal or external com
mand,

operable program or batch file.

i have installed nodejs on c drive when i hit npm --v also it state this same error

C:\Users\MNE GO DIGITAL>npm
'CALL "C:\Program Files\nodejs\\node.exe" "C:\Program Files\nodejs\\node_modules
\npm\bin\npm-cli.js" prefix -g' is not recognized as an internal or external com
mand,

operable program or batch file.

please find attachment for more clarification

via selva