What should I do if the Win7 system installation software shows that the digital signature cannot be verified?

The solution that the digital signature displayed by Win7 system installation software cannot be verified is as follows:

1. Open the browser's Internet access option under win7 Ultimate system;

2. Select "Advanced" on the Internet option setting menu;

3. Find "Allow running or installing software even if the signature is invalid" in the settings window;

4. Then click "Apply" and then click "OK";

5. After completion, you need to restart the computer to make the settings take effect;

6. There will be no installation prompt after the restart, and the software installation is successfully completed!