Your PC will boot into Windows normally, but it will now allow the installation of unsigned drivers until your next reboot. Step 2: Locate the Drivers via J-Runner

Run J-Runner explicitly as an Administrator by right-clicking the program shortcut and selecting "Run as administrator" . Alternatively, try installing the alternative LibUSB-Win32 driver using a tool called Zadig to force USB packet compatibility.

While installing the drivers for the JR Programmer V2 on a modern Windows system takes a few extra steps, the process is straightforward when you know what to expect. The key is to and use the drivers located in the J-Runner folder .

Navigate to > Advanced options > Startup Settings . Click the Restart button.

Installing drivers for specialty hardware like the JR Programmer V2 might seem intimidating, but as you’ve seen, tools like Zadig make the process straightforward. The key takeaways are:

Right-click the Windows Start button and select .

Look for a subfolder named Drivers or JR-Programmer-V2-Drivers containing .inf , .cat , and .sys files. Step 2: Disable Windows Driver Signature Enforcement