Dxdiag doesn't help you here, wrong location. Also never trust any random driver boosters / game boosters to update
your drivers, that's senseless because they mostly offer older or buggy versions. Windows updates wont update your drivers.
Start->"search"->Device Manager-> choose your graphic card->right click and choose update. - That's the standart method.
Else download use the auto updater of your graphic card provider, simply visit the website.
What's the name of your graphic card? (check Device Manager)
Do not trust other sites, you will get problems.
Edit, Screenshot for you :