Starforce is software (game) copy protection system. It has nothing to do with keeping your system running, so, no, you do not need it.
Unless you play a game that is protected by Starforce (then tell us which one is it...)
Check if an update for the game is available. Sometimes a less-protected version is released after initial publisher paranoia has magically passed.
Well I just bought a new graphics card yesterday and wanted to see what graphics were like on games so I installed a handful of games and uninstalled them after. I just ran the removal tool there and restarted windows now the error is gone.