How to turn off your RadStudio IDE start page banner display
Your Embarcadero RAD Studio program installation folder contains a subfolder named "Welcomepage". For a non-English version locate the language specific subfolder. You can edit the file "default.htm" and remove the <div>-tag with id "topbanner" to stop the display of the adverts from Embarcadero.
This has worked fine for me under XE8 and no issues with licenses so we can just hope that this file is not one that is used for license checking.
This tip was from Uwe Raabe on Delphi Developers G+, loving it so far.