https://techcommunity.microsoft.com/discussions/azurevirtualdesktopforum/failed-to-subscribe-with-error-code-0xcaa70007/2096594/replies/2991215
Failed to Subscribe with error code 0xCAA70007 | Microsoft Community Hub
When Subscribe, it shows "Can't verify you account" with error code 0xCAA70007. Try to use compatibility mode with Windows 8/7/XP but still...
to subscribeerror codemicrosoft communityfailedhub