Windows – Remove Server Manager and Powershell icons from the Taskbar

Up until recently we have had two Windows Server 2003 Domain Controllers and five Windows Server 2003 Terminal Servers. I'm in the process of upgrading the network and have recently replaced the DC's with two Windows Server 2012 R2 DC's. The original plan was to also use Windows 2012 R2 to create seven Remote Desktop Servers, however, our thin clients do not utilize RDP 6.0 and I have been forced to user Windows Server 2008 R2. I have one server up and running for testing purposes but I have not been able to remove the Powershell and Server Manager icons from the users' taskbars. I've Googled and have found several write-ups (like this one http://www.woutermakkinje.com/?p=148 and this one http://www.emware.nl/articles/remove-unpin-powershell-icon-from-taskbar.html ) but so far neither have worked.

I think it may have to do with the differences in folder location/availability in 2012 vs. 2008. The tutorials linked above have you drill down to "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Accessories\Windows PowerShell\Windows PowerShell.lnk" – this location exists in 2008 but not in 2012 so when I attempt to drill down on the DC I can only make it to "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\". I can find the Powershell and Server Manager shortcuts in that path by continuing on to "\Administrative Tools\" but adding the shortcuts I find in that directory does not disable the icons.

I know that the users shouldn't be able to run anything (and Server Manager does tell a regular user they are restricted when they attempt to run it) but I would rather not have these icons available at all.