I have been struggling with installing my UA 101 on W7 64x for more than a week now and getting quite irritated with it.
It worked correct on my W7 64x home edition. Now i upgraded to ultimate and getting alot of trouble
 
For some reason after the first part of the installation, when plugging in the USB and turning my soundcard on it doesnt complete the installation well.
 
I have the correct driver for 64x W7.
 
An additonal prompt i get is that there is a USB controller not able to install aswell.
 
I have checked if i have all the correct W7 updates and so on. but nothing helps.
 
please help me. im desperate here, having a gig next week.
 
thanks

I have the same proble.

When I turn on the UA-101, the system install a driver for a "unknow device" in the USB Host.

I try to install by many forms and read the install guide, but It don't work with any configuration.

My Pc is a W7 64 Profesional (I download the lastest drivers for this version), I try it with a USB3.0 port.

I try it for a US2.0 port but the system tell me that can't initialize the hardware and don't do nothing.

Can any help Me?
Thanks

I try to install it in a w7 64 home premium, and the UA-101 drivers install ok.

Are there anyone that have UA-101 install in w7 64bits profesional version? Ithink that this driver don't work in these OS.

Thanks at all.

I've installed a UA-101 into Win 7 Pro 64bit with no problems at all.
Twice in fact, as I decided to reinstall Windows after a few weeks because I wasn't happy with a few things I installed when I first set the PC up.

Steps:

1. make sure UA-101 is not connected to PC
2. right click on driver installer and select "run as administrator". Answer "yes" to any permissions questions Windows asks. 
3. when the installer asks me to, connect UA-101 to a USB 2 socket .
4. sit back and wait a few seconds.
5. the installer then Windows announces it's found the UA-101
6 done.

I suggest you start by downloading a fresh copy of the driver. Then check if the UA-101 driver was installed when you tried to install it  - control panel/programs and features should list it if it is installed. It might also show up in device manager, and can also be uninstalled from there.
 
If so, uninstall it. Disconnect the UA-101 and reboot the PC. Run the fresh copy of the driver installer following the instructions, waiting until the installer tells you to before connecting the UA-101, and see if that sorts things out.

If it still fails, try a different USB socket. Make sure the socket is USB2 not USB3. Many/most/maybe all interfaces (by all manufacturers) don't seem to work very well with USB3 sockets, if they work at all. If a different socket still doesn't work then try a different USB cable.

The "USB controller" could be Window's trying to guess what the UA-101 is, which might mean the driver isn't being installed correctly for some reason. One reason this can happen is if an installer isn't run as administrator.