An issue was found that caused some users to be unable to start the game on specific machines. Specifically, the presence of older ATI/AMD drivers, also on machines with NVidia hardware, would cause the game to crash on startup. This patch is a hot-fix for that particular issue. On top of this, it also increases the number of save-slots from 20, like on the PS3 and Xbox 360 versions, to 99.
Square-Enix, Eidos Montreal and Nixxes are committed to supporting this title and will continue to monitor for any further issues and provide additional patches in the future if required.
We hope this will help you enjoy Deus Ex: Human Revolution!