patch is missing + already installed in the same

patch is missing + already installed in the same

Hi everyone,
i have a problem, which is that the system shows a patch as a missing patch, but the problem that the patch is already installed in that computer, when i deploy that patch to the computers, the system says that the configuration has done successfully, but when i scan all systems, it shows that the patch is missing !
even if i deploy it manually on the computers, the computers say "this update is already installed" !
the patch description is:
Security Update for Microsoft .NET Framework 2.0 SP2 on Windows 7 Service Pack 1 and Windows Server 2008 R2 Service Pack 1 (KB3074543)

so, how the system could not category this patch as a missing patch ? because it is not missing !
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