Before installing the new driver, it is a good idea to remove any old, corrupted software. Tools like Display Driver Uninstaller (DDU) can help wipe previous driver remnants to ensure a clean setup. Once the cleanup is done, run the official installer you downloaded and restart your computer to finalize the process.
Windows does not natively support RAR files. You must use a third-party utility like 7-Zip or WinRAR. Asus N13219 Graphics Card Driver.rar