Might be slightly in the off topic zone, but here's my two cents.
If you're going to update your display driver, the best practice is to
NOT update it over your existing installation.
Simply uninstall your current display driver, Reboot, then install the newer/latest driver.
In case you're having issues with a certain display driver, you may want to uninstall your existing driver installation first from the add/remove programs, then grab the latest version of
DDU (Display Driver Uninstaller by Wagnard) and let it reboot into safe mode (this tool allows you to do it) and clear out the registry remains that every driver installation leaves behind. This is essential if you want to clean install your drivers. Once DDU is done clearing out the remains of the previous driver, select restart from within DDU, it'll boot you back into normal mode, and install the latest driver as you'd normally do.
Just uninstalling and installing the latest update let's you use your customized profile/settings for games you may have done, which can cause conflicts at times as drivers have many branches of development and a certain branch may not be fully compatible with your customization. The clean install method ensures that this doesn't happen.