@meme94 There is a somewhat strange option (which may not be the best option, but it may be easier), which is to make a remote connection to her computer, and from there access the Rpi and transfer the ROMs from her computer to the RPi in local network, you will only "operate" it from a distance ...
If both are using Windows 10, there is a native tool called "quick assist" to make the remote connection, otherwise, there are specific programs for this, free for home use, you just need to do a little research.