Go to the run line and type regedit. Go to
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{2205E3A5-DCDC-461D-8ED6-D6F2341D3B64}
On the key that says NoRemove change the 1 to a zero.
Then you can go to Add/Remove programs and uninstall it.