Invalid PLATFORM variable "BNB".

Just finished downloading Delphi 10.2 Starter over Delphi 10.1  Starter and now cannot do anything.

1. Where is the Component I used for 10.1 TWebBrowser gone, nothing in the Component system, there is a FireMonkey thing but I would like the Windows dll;

2. Tried the FireMonkey thing and now get Invalid PLATFORM variable ERRORS; and

3. Checked out the Environmental Variables in Tools, Options but have no idea what to do there.

I am so close to in-installing and going to Visual Studio.

And also, how do you insert graphics in this editor and what is Responsive Filemanager.