Hi. I just updated windows 10 to version 1803. When rebooting it asked me for permission to use my location, permission to use my advertising id etc. And I said no to every one of them. When starting Unity HUB it prompted me for a serial and when I inserted it It gives me "serial failed to validate - empty hwid from client". My guess is that I have now revoked the possibility for programs to access my advertising identifier and the unity serial thing is dependant on that. I feel like I have been spending more time struggling more with the unity serial in this program than I have actually saved by using it. Why does this tool need me to sign in or ask for a serial? Its two jobs is to open the correct unity version for a project (which requires a separate unity serial window) and install unity versions (which should not require a serial).