Can't install directX "Cabinet files error"

  RickVan Hek 14:58 22 Jan 2015
Locked

So I tried starting Garrysmod (game on steam), it gave me this error:

click here

It redirected me to this website:

click here

So I tried installing it but it gave me this error whilst installing it:

click here

this means "A Cabinet file necessary for the installation cannot be trusted, check if the Cryptographic services are enabled" in English

I tried restarting the cryrptographic services already, and that didn't work.

How do I fix this?

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