Fixes winrm access denied bug for Windows versions 6.0 and 6.1

On Windows Vista, 2008, 2008 R2 and 7, changing the configuration of
the winrm service will fail with an "Access is denied" error if the
User Account Control remote restrictions are enabled.

The solution to this issue is to temporarily disable the User
Account Control remote restrictions.

https://support.microsoft.com/kb/951016

Co-Authored-By: Robert Tingirica <rtingirica@cloudbasesolutions.com>
Closes-Bug: #1379854

Change-Id: I07b61b94900d39ad0aee544e26ee37bbc94bf7b9