Can you give me the link to Asus support site and let me know which driver you are trying to install.
Press Windows key + X.
Click Device Manager.
Once device manager is open, select the device, right click it and click Update Driver Software. This will launch the update driver software wizard, which presents two options:
Search automatically for updated driver software – its possible Windows might have the driver software if you have not checked it yet, if its taking too long, then the next option is usually best.
Browse my computer for driver software – if there is a compatible driver and you already have the driver files, then all you need to do is point to it and Windows automatically install it for you.
Here select to use an existing driver, browse to where the driver package is located on your computer, whether that is a partition, network share, thumb-drive or install disc. Make sure the option to Include subfolders is checked. Click Next and wait while the wizard completes the installation.