: Execute the downloaded setup file. On Windows 10, it is recommended to run the installer as an Administrator and avoid installing to the default C:\Program Files (x86) directory to prevent UAC-related permission issues. IDE Component Registration
Once the BDE Installer is installed, you will need to configure it to work with RAD Studio 10.2 Tokyo. Here are the steps: BDE Installer For RAD Studio- Delphi- C Builder 10.2 Tokyo