"Your computer automatically downloads the Windows(R) 10 driver from the Internet when the OCTA-CAPTURE is connected to the computer."

MrMook
"Your computer automatically downloads the Windows(R) 10 driver from the Internet when the OCTA-CAPTURE is connected to the computer."

That is "plug and play".

Quad Capture working for me, unfortunately I can't get the PCR 800 to work connected to USB port. 

Yep, no go on PCR.

I see they dropped the UA-25 interface. It makes sense because it's only USB 1.1, at least mine is. IS that the difference between the A-Pro series and the PCR series?

PCR's are not on their "list".  Seeing as these have been discontinued we may never see Win 10 compatibility, unless someone comes up with a fix on their own.
 
I have a PCR-500 but although I've upgraded my Win 8.1 to Win 10, I have a dual boot with Win 7 and still able to use it on Win 7 (although my PCR-500 mostly is not used and just collects dust).
 
I'm more concerned with my Studio-Capture and getting it working.  I want to switch from Win 7 to Win 10 as my "production OS" but can't until they get the Studio-Capture working.  Everything else I have including a BCF-2000 and my old Frontier Tranzport works in Win 10.  Its the way Roland wrote the drivers, if they would not have made them OS specific it would have probably worked. 

Success! with my PCR500 and Studio Capture. 
Modifying an .inf file in both drivers allows installing in Win 10.
Thanks to Blades for the info in this forum thread (the thread is long go to the last page).
http://forum.cakewalk.com/Who-switched-to-Windows-Ten-m3255186-p3.aspx#3265652