I have an issue with the 10.2 Trial edition. I am able to compile a C++ Release Build but cannot compile a Debug Build. I am getting numerous E2257 errors in Winapi.Windows.hpp and Winapi.ShellScaling.hpp, and E2238 and E2344 errors in SystemRtti.h. I reviewed https://community.embarcadero.com/article/articles-support/171-rad-studio/16436-issues-with-winapifamily-h-and-other-header-files-after-installing-c-builder-10 for a previous similar problem with 10.1, but verified all of the eight header files are present and updated after the 10.1 hotfix. I had a similar problem when I updated to the 10.2 Starter but resolved that when I reloaded my previous project file. That is not working for me now. So, if anyone can help me resolve the winapi problems I'd also appreciate it. FYI, I did a complete manual uninstall of the previous Starter editions before installing the Trial edition, so hope that helps. Perhaps there are still some old files or registry keys that are affecting the clean execution of 10.2 Trial for me.