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#41
I'm not sure how you got that click this link How to install the latest version of DirectX
Then click the 1ST option - Platform Update for Windows 7 and Windows Server 2008 (KB2670838)
Next you have to sign in with a windows live ID
Click download
Clikck the 1st option X64
Then click next
then click open.
If you have the latest version it will tell you.