Windows 2008 R2 - ..\winsxs disk space issue

I'm having the known issue with ..\winsxs causing the system partition to become full.

Several months ago I did the follow fix to apply service pack 1 and this did free up some disk space.

http://support.microsoft.com/kb/2795190

I now have the same disk space issue with ..\winsxs and the KB2795190 fix didn't clean up any disk space. I received "Service Pack Cleanup can't proceed: No service pack backup files were found."

I also found the link below saying the bug has been resolved with Windows 7. I installed desktop experience and attempted to patch cleanmgr.exe, but wasn't able to find a compatible patch for Windows 2008 R2. I did attempt to apply the Windows 7 patch (KB2852386), but received "The update is not applicable to your computer". Is there a patch for Windows 2008 R2 SP1?

http://blogs.technet.com/b/askpfeplat/archive/2013/10/07/breaking-news-reduce-the-size-of-the-winsxs-directory-and-free-up-disk-space-with-a-new-update-for-windows-7-sp1-clients.aspx

http://support.microsoft.com/kb/2852386/en-us

Thank you,

Don