What should I do if the win8 system third party inf signature is invalid?

The win8 system has a third-party inf signature invalid problem, you need to set the advanced startup option to solve, in the win7 system is the system default, but in win8 changes, it is worth noting.

1. Place the mouse in the lower right corner of the computer, and the hidden toolbar on the right will appear, find the settings;

2. Click on the settings to go to the next interface and find the bottom right corner. Settings & rdquo;;

3, then go to the next step, find & ldquo; update and restore & rdquo;;

4, go to the next step, find & ldquo; restore & rdquo;, click to see the advanced options , then click “restart”;

5. After rebooting, go to the next screen, “select an option”, then click <;troubleshoot>;

6. Enter In the next interface, click “Advanced Options 

7. Go to the next step and click “Start Settings>;

8. Next, click “Restart” After restarting, enter the setting interface, select F7, “ disable the driver to force the signature >;

9, the setting is completed, restart, and then continue to install the program, always allowed!

Note: The setting of win8 has changed before, you need to set it step by step!