How to check if my Crysis 2 has already have the directx11 patched?

Checking it on the pc, most likely found in the options area of the game if not, try right clicking on the crysis 2 game icon and click properties, there may be info on if it has the latest update or not, alternatively try and download the latest patch of the games site.How to check if my Crysis 2 has already have the directx11 patched?
The best way to look for it is, go to system settings, memory, crisis 2, and look for a file named along the lines of "title update 4" this is for xbox, and from there you can delete the update, but then you may not play on xbox live