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The official instructions for installing the windows Subsystem for Unix-based Applications list two steps:

  1. Open the "Turn Windows features on or off" window and turn on "Subsystem for Unix-based Applications."

  2. Download and install the USA Utilities and SDK.

I'm stuck on step 1. The windows features dialog box on my Windows 7 Pro x64 system doesn't list SUA at all! None of the official or third-party instructions I've found address this possibility.

Here's a screenshot showing on the left, an image from the installation tutorial video, and on the right, my own system. Notice no "subsystem" on the right.

alt text

If all else fails I could use Cygwin, but I wanted to try out this alternative.

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I have it here on my Ultimate machine. Perhaps it's Ultimate-only? – Shinrai Nov 19 '10 at 19:29
...oh, yeah, it is. Answer added. – Shinrai Nov 19 '10 at 19:30
up vote 8 down vote accepted

This is only supported in Ultimate. Sorry!

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Yep. Seems this detail is overlooked in some of the the docs from both Microsoft and the community. Thanks! – Josh Nov 19 '10 at 21:26

More specifically, Utilities and SDK for Subsystem for UNIX-based Applications in Microsoft Windows 7 and Windows Server 2008 R2

Lists the following as system requirements: Windows 7 Enterprise, Windows 7 Ultimate, Windows 7 Ultimate 64-bit, Windows Server 2008 R2

Which is sad, as Professional could benefit from NFS server ('mount' is not recognized as an internal or external command, operable program or batch file.)

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