-Boot loader driver install problem for Challenger 10
Message: The Third-party INF does not contain digital signature information
How to install a driver that does not contain digital signature in Windows 8 & 8.1?
Go to Start - Then Command Prompt
Enter command "shutdown /r /o /f /t 00"
Click the "OK" button
System will restart to a "Choose an option" screen
Then select "Troubleshoot" from "Choose an option" screen
Then select "Advanced options" from "Troubleshoot" screen
Then select "Windows Startup Settings" from "Advanced options" screen
Click "Restart" button
System will restart to "Advanced Boot Options" screen
Select "Disable Driver Signature Enforcement"
Restart & install drivers...