Updated: PowerShell Profile Locations Rationale
You may have noticed that we changed the location of the default profiles yet again!
The one in “My Documents” is now under “WindowsPowerShell,” rather than “PsConfiguration.”
The one in “All User’s Documents” is now under the installation root.
Since you are probably wondering why, I’ve updated my last explanation: The Story Behind the Naming and Location of PowerShell Profiles.