Here
https://www.asustreiber.de/downloads/download/60-windows-10/778-gl553vd-treiber-dvdI don't think that's a recovery image, just that drivers partition/folder that comes with the laptop from the factory.
If you need to reinstall Windows, don't bother with the recovery image. Reformat and do everything from scratch.
Download the Microsoft Media Creation tool. It's very straight forward. After that just download what you need from the Asus support website and your laptop will be even better as new, updated and without all the bloatware.