This is the challenge as Windows 8.1 rolls out across the world.
The device drivers for many popular audio, video and printer devices may not be available. Without a signed 8.1 driver, you are out of luck until the manufacturer releases it.
Last year Roland was on the bit with Windows 8.0 drivers and delivered them almost concurrently with Windows 8. Windows 8 shipped on October 26th, 2012 and the Roland drivers on November 2, 2012.
Windows 8 drivers will not work on Windows 8.1 so if you have any of Roland’s audio products you might consider waiting until they are announced.
The list of affected products includes
MIDI Sound Module: