FP2 is an unknown device via USB to Windows?

In Device Manager you can enable View - Show hidden devices.
Is it visible then, or is anything maybe conflicting visible there (other smartphone names, older drivers, anything with “MTP” or “ADB” in its name)?

If so, perhaps a little generic cleanup might help … Trying to install /e/OS on FP3, but it hangs on fastboot on Windows 10 - #2 by AnotherElk … even if I don’t think Windows 7 would automatically install the necessary drivers like I’ve written there with Windows 10 in mind, but that’s where we are anyway.