DVP-ES3/EX3/SV3/SX3 Series Hardware and Operation Manual
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A.1 Disable Driver Signature Enforcement
Driver signature enforcement provides a way to improve the security of the operating system by validating the
integrity of a driver or system file each time it is loaded into memory. Because the Delta PLC USB driver does
not include the driver signature, this section shows you how to disable driver signature enforcement in
Windows to successfully install the Delta PLC USB driver. Once you disable the driver signature enforcement
setting, it returns to its original state after you restart Windows.
A.1.1 Disable Driver Signature Enforcement in Windows 8
Follow these steps to disable driver signature enforcement in Windows 8.
1. Press the Windows button
【WIN】+【I】 on your keyboard to display the Settings window. Click
Change PC settings.
2. The PC settings window appears. Click General and then click Restart now under Advanced startup.