Win8.1 system download failed and prompts invalid signature solution

Win8.1 system download failed and prompts invalid signature solution:

1. Open in Win8.1 system IE browser, click Tools-Internet Options on the top of the open IE browser window;

2. In the pop-up window, switch the interface to the advanced column;

3, in the settings window below, find "Check the front of the downloaded program", then remove the item;
4, after completing the settings, click the OK button at the bottom of the window to save Settings. The above is an introduction to the Win8.1 system download program failure and prompt signature invalid method, the method is very simple, Russian friends with the same problem can try.