Angular2 creating a new App hangs during npm install

I have an issue that appears during the creation of a new App with the cmd:

ng new [MY_PROJECTNAME] --prefix [MY_Prefix]


What I did before:

1. install npm -g install angular-cli
2. install npm -g install typings -> which shouldn't be necessary!
3. after a few failing tries I also tried: npm cache clean and then retried

Versions:

• Windows 7
• node 4.4.5
• angular-cli 1.0.0 beta6

So the program keeps hanging for quite a while (7min or so...) in the stage as shown in the Picture.

Does any one now how to fix that?

Problem in cmd while creating new App:



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