DirectX 9

The problem is this:
work computer with uchetku user has dx11. Downloaded fallout 3 and Skyrim, but they didn't start, because require dx9.
At first, it is clear that my rights are limited, install to system folders salochana.
Who can what prompt on this subject, or tell me how to determine (if the description is missing), you will need the libraries for dx9 games.

P. S. please do not write about games at work, that's fine.
P. S. S about alcohol admin too.