There might be an issue with the compatibility of the G Power program with your laptop or some other technical problem. You may try checking the system requirements of the program and ensure that your laptop meets them. Also, make sure you have downloaded the correct version of the program for your operating system. If the issue persists, you may consider contacting the program's support for further assistance.
Simply go to the official website and click on the download button. Wait a few seconds and then the package will be saved to the default location: Documents & Settings > YOUR USERNAME > Downloads.
There might be an issue with the compatibility of the G Power program with your laptop or some other technical problem. You may try checking the system requirements of the program and ensure that your laptop meets them. Also, make sure you have downloaded the correct version of the program for your operating system. If the issue persists, you may consider contacting the program's support for further assistance.
Check out http://www.gpower.hhu.de/en.html
That page indicates version 3.1.9.2 for Windows 7 (32 and 64 bit).
Simply go to the official website and click on the download button. Wait a few seconds and then the package will be saved to the default location: Documents & Settings > YOUR USERNAME > Downloads.