I was successful installing a Casio Privia px-575R to Windows 7 Ultimate x64!!!
I tried to use Yamaha, Korg, M-Audio, and some other drivers I don't remember and
they did not work.
I then downloaded the driver for PC-50 from
http://www.roland.com/products/en/_s...16224976&dsp=1
(but I bet any of them would work) from Roland. All I did was change the hardware ID
in the INF file under
[Roland.NTamd64.6.1]
;; Windows7
%RDID0053DeviceDesc%=RDID0053Install, USB\VID_07CF&PID_6802
The ID is after the comma and that one is from the Casio keyboard i have. The
hardware ID for your keyboard can be found in device manager. Just choose your
hardware/keyboard and go to "details" and choose "hardware id" from the drop down
menu and put that after the comma. It will start with "USB" since it is a usb
devise. There may be more than one ID but the first one works for me. Then just do
a manual install by right clicking "computer" or "my computer" and click "device
manager" tab. Then find your keyboard (probably a yellow exclamation mark next to
it) and double click it. Then go to the "driver" tab and click "update driver".
Then choose "Browse my Computer for driver software", then "Let me pick from a list
of device drivers on my computer", then "Have Disk..." and browse for the INF file
you just put the hardware ID in and click "open".
You now have a working Casio keyboard for a 64 bit or x64 operating system.
If you have any questions, my email is
(E-Mail Removed).
Thanks