Found this out.......
Roland Audio Drivers Not Compatible With Windows 8.1
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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.
Update – see below for Roland’s response.
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.
This holds true for any device like a video card or printer as well. If you update too soon, the affected device probably won’t work.
QuestionWhen will the Windows 8.1 64 bit drivers for the UA-25EX be available? The current drivers are signed for Windows 8.0 and Windows 8.1 will not accept them. Thank you. Stephen Pate AnswerGreetings / Salutations!,
Thank you for your inquiry. There are currently no drivers available for Windows 8.1 for your UA-25EX. For the latest drivers for your Roland gear keep an eye on the Roland product page:
http://www.roland.com/products/en/index_alpha.htmlBest Regards / Sincèrement vôtre, Roland Canada
The list of affected products includes

Roland Octa-Capture
Audio Interface: OCTA-CAPTURE QUAD-CAPTURE TRI-CAPTURE DUO-CAPTURE UA-101 UA-1EX UA-1G UA-25EX UA-4FX
MIDI Interface: UM-ONE UM-1/1EX/1S/1SX/1X UM-1G UM-2/2C/2E/2EX UM-2G UM-3EX UM-3G
MIDI Keyboard Controller: A-49 A-500S
A-PRO series PC-50 PCR-30 PCR-300 PCR-50 PCR-500 PCR-80 PCR-800 PCR-M1 PCR-M30 PCR-M50 PCR-M80
MIDI Sound Module: SD-50 SD-20