If you do not have a USB drive, ASUS EZ Flash 3 v03.00 allows you to download the update directly from ASUS servers.
I can provide the exact steps and files you need for your specific hardware configuration. Share public link asus ez flash 3 utility v03.00 update
Here is everything you need to know about using this utility to keep your system at its peak. Why Use EZ Flash 3 Instead of Windows Tools? If you do not have a USB drive, ASUS EZ Flash 3 v03