Finally, navigate to where you extracted and modified the drivers and install the new modified drivers.Once PC has restarted, press the number 7 to 'Disable driver signature enforcement'.Once it takes you to the blue menu screen, click: 'Troubleshoot', followed by 'Advanced Settings' > 'Startup Settings' > 'Restart'.On the right, where it says Advanced Startup, choose 'Restart Now'.This will take you to the Windows 10 Settings Recovery options. Click Windows Start, and type 'Change advanced start-up options' and execute it.To do this (before going further you may need to write these down as you'll be restarting your PC and may not know what to click). Therefore you will need to install them without driver signature enforcement. Given the drivers have now effectively been 'tampered' with, Windows won't automatically allow them to be executed as a security precaution. Search within the *.inf files (ctrl+f) for the text string: ' ' (not including the speech marks) and take a look at the lines below it.Open these *.inf file(s) using Notepad.In my case there were two, one in each of the 32- and 64-bit folders: um3ex_w81d_v101/Files/64bit/Files/RDIF1058.INF and um3ex_w81d_v101/Files/32bit/Files/RDIF1058.INF

Search the folder and sub-folders for an *.inf file.

Extract the contents its own new folder (um3ex_w81d_v101, in this case).

Download the Windows 8.1 drivers for your Edirol/Roland device (UM-3EX in my case) from the Edirol/Roland website.

Remove the Edirol/Roland USB device from your PC, if connected.It's worth a try before you junk or ebay the unit which I was about to do. However there is a workaround that people have used with V-Drums and it worked for my UM-3EX too, although it takes a little editing and bypassing certification. Attempting to install with compatibility settings, admin privileges, etc.

Edirol pcr 800 driver windows 10