nanokontrol studio driver problem!

[marin_q]

I have a problem with installing windows 7 driver for nanokontrol studio.

I actually managed to install with no problems few days ago, but than I had problems using device in Repaer, so I uninstalled it in order to try to fix this problem in Reaper.

It turns out it was a big mistake, because since than I tried reinstalling it for dozens of times , but systems keeps telling me " device was not successfully installed, consult with your device manufacturer for assistance getting this device installed."

I really don't understand what did I miss, since I removed driver from control panel, followed installation instructions, but I managed to succesfully install driver only for the first time, while all other reinstallment attempts were unsuccessfull.

Please help, I have this thing for over a week now and still didn't have a chance to try it in my DAW, I lost hours and hours trying to fix this .

Thank you in advance!