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

win8 system has a third-party inf signature invalid problem, you need to set advanced startup options to solve, in the win7 system are 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 will appear on the right to find the setting.

2, click to enter the next interface, and find the lower right corner. Change the computer settings & rdquo;;

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

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

5, restart to the next interface, & ldquo; select an option & rdquo;, then click “ troubleshooter ”;

6. Go to the next interface, click “Advanced Options>;

7, then go to the next step, click “Start Settings” ;

8, next step, click “ restart & rdquo;, restart, enter the settings interface, select F7, & ldquo; prohibit the driver mandatory signature & rdquo;;

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!