Error -1

"Error -1" means that the downloaded file is removed.

Your protection software is a possible culprit. Depending on its the work mode and settings, the action could be completed without any notification on the screen. Kindly check the sensitivity level of your protection software. You can exclude Driver Genius and its work folders from the scanning route of the protection software, if necessary.
Please open Driver Genius afterwards and click on "Start Scan", then install the drivers.
If you need assistance, contact the technical department of your security software. They can help you with the necessary configuration to use Driver Genius without interference.
Here is an example where to find these settings in some popular antivirus programs: Avira EMSI, Viper, Norton, AVG, Avast, Malwarebytes, Kaspersky, Webroot, Trend, Bitdefender, Microsoft Security Essentials, Windows Defender, McAfee, Panda, Bullguard, Symantec Endpoint Protection, Advanced SystemCare Ultimate 9, ESET, WinAntiRansom, 360 Total Security,  F-Secure

Should you experience any difficulties, please submit request and representative will reply.