ng is not recognized as an internal or external command

Running windows 7 Professional 32bit.

I tried running npm install -g angular-cli both under normal or admin. 2016-06-23_14h46_40

I also tried adding it to the Enviorment Variables under PATH: (C:\Users\Administrator\AppData\Roaming\npm\node_modules\angular-cli\bin\ng) , with no success also.
2016-06-23_14h56_48

What am i doing wrong?

Answers:

I solved this problem in accordance with the figure:

run in cmd 

 npm install -g @angular/cli

and then

( open in Windows 10) Control Panel\All Control Panel Items\System or accordance with the figure

step 1:

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step 2 :

enter image description here

step3:

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step4:

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step5:

enter image description here

And in the end, the computer must be restarted.

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