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  Home > DCC Digital Command Control Help + other items of help for Railway Modellers > The Lenz Digital Plus DCC System > 23151 USB/LAN Interface > Installing Lenz USB Driver software on Windows 8.1 64 bit



Instructions for installing the LAN USB 64-bit driver software onto Windows 8.1tm

When installing the USB driver software you may see a message similar to this:


In Windows 8.1 on a 64 bit operating system, you must disable the Driver Signature Enforcement to install the 64 bit LAN USB drivers. Once the Driver Signature Enforcement is disabled the system will reboot, then you will be able to install the driver. The next time you shut down and restart your PC after this operation, the Driver Signature Enforcement will default back to enabled, but once the  Driver is installed for the first time, you can install a new version without having to disable it again in Windows.


To disable Driver Signature Enforcement in Windows 8.1

1. Open the Charms bar (Win +C Keys pressed together) and select settings:


2.Select "Change PC Settings"


3. Select "Update & recovery"


4. Now click the Recovery option


5. Once selected, you will see an advanced startup section appear on the right hand side. You will need to click on the “Restart now” button.


6. Once your Computer has rebooted you will need to choose the Troubleshoot option.


7 Then head into advanced options


8. Select Startup settings


9. Since we are modifying boot time configuration settings, you will need to restart your Computer one last time.


10. Finally, you will be given a list of startup settings that you can change. The one we are looking for is “Disable driver signature enforcement”. To choose the setting, you will need to press the F7 key.



After pressing F7 the PC will restart.  Once ready, log in as normal.  Go to "Control Panel".  Select "Devices and Printers".  Locate the LAN USB (or Li USB) and then click on "Properties", select "Install driver".  Now use browse to point the PC towards the Driver software location (Your CD drive).  The PC will now install the correct driver software.

With thanks to John Ferguson for helping with this issue




 
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