To get the best performance from your computer, it is recommended that you make sure you have the latest drivers for the hardware devices in your computer.
If you're uncertain if your computer has all the Microsoft Windows updates installed on your computer, read the Windows Update FAQ.
It will guide you through performing a Windows Update.
Now, there's another option for those who are wary of keeping up with out-of-date drivers.
There are disk utility programs that promise to scan your computer and make sure you have the most up-to-date drivers. Remember that you can easily check (at no cost) if you need drivers, not to mention the fact that Windows Update is making sure you have the most secure, necessary drivers at all times anyway.
If you are on a corporate network, contact your administrator if you are concerned about updating your computer.