Thanks for your help but i have discovered the problem.
I have downalowd http://www.microsoft.com/fr-fr/download/details.aspx?id=3274
and it's good

I have translate with the translator so sorry for the english

Hello to all and to all
Here is my problem it is because I bought armed(equipped) 3 but, he does not dash(launch), he marks me armed(equipped) 3 stopped of worked. I looked during the good hour but I found nothing.
It is written it:

Signature of the problem:
Name of event of problem: APPCRASH
Name of the application: arma3.exe
Version of the application: 1.30.127.372
Timestamp of the application: 54255879
Name of the module by default: d3d11.dll
Version of the module by default: 6.0.6002.18005
Parking meter of the module by default: 49e03821
Code of the exception: c0000135
Gap of the exception: 00009eed
Version of the system: 6.0.6002.2.2.0.768.3
Identifier of regional parameters: 1036
Additional information N 1: 9d13
Additional information N 2: 1abee00edb3fc1158f9ad6f44f0f6be8
Additional information N 3: 9d13
Additional information N 4: 1abee00edb3fc1158f9ad6f44f0f6be8

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Thank you for being willing to help me.

How find C:\Users\<Name>\AppData\Local\Arma 3\