Roneerhart
You have to make a clean installation. Everyhting of the old sofware have to be removed.
When it's clean you can make a connection by USB with your Roland A 800 Pro by usb.The installation with windows 10 goes autonatic. No problems. Windows detect the Roiland A-800PRO and the installation will be done. automtaic!!,
So it goes.
I have a Roland A800 PRO and it works great!!!!
I have no problems getting Windows 10 install the driver automatic. That isn't my issue.
The issue is that the hardware can't remember the firmware.
Anyway, I have run it standalone too with help of a 9V adapter without any USB or computer attached. Still the hardware firmware onboard crash so this device is broken, out of order.
Anyway, thank you all for your suggestions but I will buy a new product instead.
Best Regards
Freddie