If you already installed C++Builder Starter, and want to install Delphi Starter (available at an 100% discount for a limited time) you can do that. It just takes an extra step.
Important note: This option is not officially supported. The FAQ specifically states the correct process is to uninstall the old starter, or use a different VM. If you don't mind going down an unsupported route, proceed at your own risk with the steps shown in this article. You may run into troubles though, and support will be unable to help you.
First, you need to launch the LicenseManager. You can find it in the BIN folder inside your RAD Studio / Delphi / C++Builder install directory.
Once you launch the LicenseManager you need to use "Add Serial" to add the additional serial number.
Then select the new serial number on the left and click "Register" where you can provide your EDN username and password.
Now you can run the installer "radstudio10_1_esd.exe" again, and it will give you an option to install your second product.
And after just a few minutes you are ready to go!
Good luck and see you at the boot camp!
Important note: This option is not officially supported. The FAQ specifically states the correct process is to uninstall the old starter, or use a different VM. If you don't mind going down an unsupported route, proceed at your own risk with the steps shown in this article. You may run into troubles though, and support will be unable to help you.