It’s probably because TLS uses your system clock to validate certificates. If your clock doesn’t match the server you’re connecting to, TLS fails and you get an “https failed/connection is insecure” error. And Windows likely uses https in the store to ensure MITM attacks can’t replace valid downloads with malicious ones.
Couldn’t install iTunes because my clock was wrong. That certainly wasn’t the ERROR I was presented with, but was ultimately the root cause.
That, coincidentally, was the very same evening that I decided to and did uninstall windows on that machine.
It’s probably because TLS uses your system clock to validate certificates. If your clock doesn’t match the server you’re connecting to, TLS fails and you get an “https failed/connection is insecure” error. And Windows likely uses https in the store to ensure MITM attacks can’t replace valid downloads with malicious ones.