New
#1481
Double-click on the rar. This will show you its contents.
Create a new folder on your PC (I would name it Realtek HD Audio v7968).
Now extract all the files in that .rar to that new folder (which means it will copy the contents to the new folder).
Now go to your Device Manager, right-click on Realtek HD Audio, then Update Driver, then Browse my computer... now choose that new folder you created, and continue.
It should install with no problems.