Invalid installation medium (for 1.)

It can happen that only the executable setup file has been copied from an installation medium. This happens when a user copies the setup to their computer without the GpTools and INI folders.

If you create a backup of the installation medium, always copy the setup file together with the GpTools and INI folders.

If you no longer have an installation medium but still have the executable setup file, you can try to create an installation medium (see Creating an installation medium).