Win8.1 install itunes software prompts "error during Setup, your system has not been modified" workaround
Workaround: This error occurs because there is a "Devic intall service" in win8.1 that is not started, so long as we start it properly.
1, press the Win+r key, and then enter services.msc carriage return;
2, in the list of services to find "Devic intall service" services; xitongcheng.com
3, double-click the service, in the configuration, click the "Start" button to open the service, it is best to'll the startup type set to Automatic or automatic (delay);
4, finally we reinstall the itunes software (note that the previous can be uninstalled in the program before the complete uninstall and install).