The solution is as follows:
1. We use the EDGE browser of Win 10 to open the program to be downloaded and download it again. After completion, it still shows that the program signature is damaged or invalid. But the advantage of this is that we can find out where the files we downloaded are and click "Open Folder" in the upper right corner.
2. Click to open the folder where the downloader is located.
3. After opening the folder, we try to double-click the downloaded program and run it. At this point, the system prompts "This program may cause security risks to the computer". As long as students know the credibility of the downloaded program, they don't have to pay attention to this prompt, just click "More Information".
4. After clicking, the system will prompt Windows 10 again, and the safety consultation is in place. Now you can see the name of the program and the information of the publisher. If the opened program is shown as "Unknown Publisher" as shown in the figure below, there may be two possibilities, one is that the publisher is not filled in the application at all, and the other is that the system failed to read the publisher information due to the network speed. Here we insist on clicking "Run".
5. After clicking, the program finally starts running.
6. If you follow the method I introduced above, the program will not run normally after opening. But when the following situation prompts, it is strongly recommended to adjust the user's network speed, or change the download source to download again, which can be a perfect solution.
The above is the solution to the problem that win 10 prompts that the signature of the program file is damaged or invalid. Users who have the same problem can solve it according to the above method.