Navigate to the Microsoft Security Client folder (should be under Program Files).
Right click on setup.exe and select Properties.
Select the Compatibility tab & click the 'Change settings for all users' button.
Click 'Run this program in compatibility mode for' and select Windows 7.
Close out of the dialog boxes by hitting OK in both of them.
Try running the uninstaller again from the control panel.
You can also try at that point opening an Elevated Command Prompt and Navigating to C:\Program Files\Microsoft Security Client\ and then typing in setup.exe /x
That should (note should) remove it. No attitude was needed.
unfortuantly have allready tried it it still launches the installer and just continues to say that i dont need to install it as windows 8 has a higher versionblah blah
no attitude was intended