System Requirements:
A PC running
Windows 7 (32 or 64 bit),
Windows 8 or 8.1 (full version), Windows 10.

Tech Support:
Tech Support Hours:
8:00AM - 5:30PM
Mountain Time

9:00AM - 1:00PM
Mountain Time
Phone: 800-921-4834
Fax: 770-216-1836
Sales Hours:
8:00AM - 5:00PM
Mountain Time
Email Sales:

RT Systems
Product Guide
RT Systems
510 Compton St, #105
Broomfield, CO 80020
Join Our
Mailing List!

Enter your e-mail address
to receive programming
tips, promotions or
other information from
RT Systems.

 Visa MasterCard Discover and American Express

Knowledge Base:  
Problems with Driver Signature Enforcement on Windows 7 x64.
Last Updated: 03/31/2016

In some versions of Windows 7 x64, we have been experiencing issues with verifying the digital signature on our drivers for the RT Systems USB cables.

This problem is an indication that you have not run updates for your operating system in a long time. The update for drivers was published by Microsoft in the Spring of 2015. To avoid other issues with programs or drivers, you might want to run updates for your Windows 7 system.

You can download a newer version of the drivers from the link below,


Download and run this file for drivers that work on Windows 7 that has not had all updates applied.

If you continue to have issues, please contact Technical Support for further assistance.

Was this article helpful?


Related Articles
 > Mac Drivers for USB cables for RT Systems Radio Programming

Windows Drivers for the RT Systems USB cables

Cable wiring details







Driver Installation on Windows 2000

Cannot hit repeater

Radio rings when no one is calling

Windows Device Manager


Drivers for the RTS-03 USB to serial adapter

 > Updated drivers for Kantronics USB cable from Associated Radio
 > RT Systems Control Cable Tester

 > The new programmer interface to RFinder Worldwide Database
 > Silicon Labs Drivers