How to force Windows 8.1 to install non digitally signed drivers.

1. From the desktop, mouse over to the right and bring up the “charms”.

2. Click on settings, change PC settings.

3. Click on Update and Recovery.

4. Click on Recovery. Then click on Advanced Startup.

5. Click on Troubleshoot

6. Click on advanced options.

7. Click on Windows startup settings.

8. Restart.

9. Type in 7 for “disable driver signature enforcement.”

10. The computer will then reboot. At this point you can install Flash Update from our website. Or reinstall the drivers if you previously attempted to install Flash Update. Start by right clicking on the screen and click on “all apps.”

11. Click on control panel

12. Select System and Security.

13. Select Device Manager.

14. Select ports (Com & LPT) and right click on IAR LPS2468(Applied Instruments Virtual Com Port)

15. Select update driver, and then click on search my computer for driver. And locate the C:\FlashUpdate folder3

16. After the driver installation completes, (you may need to click “install device driver anyways”) connect your meter and run Flash Update.