Isolate Windows machine on the same network
I'm having a guest come to stay shortly who has an old Windows laptop which he will want to connect to my WiFi network.
a) How can I prevent file sharing (inadvertent or otherwise)?
b) Is there any risk of malware which may be present on his machine infecting my iMac or various iPads and iPhones connected to the same network?
Thanks in anticipation of your help.
iMac 21.5″, macOS 10.15