Hi device manager is where i think you have tried to update the driver
from and it can not always find an update to a particular driver.
a reason for this it checks the microsoft database and it is not always updated by manufacturer's straight away so leading to you already have the latest driver message.
When trying to update a particular driver always visit the vendor website as they will have the latest updates for any drivers
that you have installed.
Please try these now.
With branded computers not custom built please try the computer manufacturer's website first before vendor websites as they will contain any customisations from the computer manufacturer that the vendor driver does not contain.
Hope this helps.