The tech giant says the new features are designed to alert users before they engage with something suspicious.
The test itself is run via the Speedtest service from Ookla, with which Microsoft collaborates. In practice, the feature therefore functions as a shortcut to a web-based speed test, not a local tool ...
You can plug in your phone, download an emulator, or install the Google Play Store to access Android apps on your computer. Some tinkering may be required.