M-Track drivers not found one one Windows 7 SP1 64-bit box

Hi, I am trying to install an M-Track on my main Win 7, 64-bit system. In device manager, it shows as M-Track with the dreaded yellow exclamation point. It works fine on another Windows 7 box, as well as my Mac. I have tried the entire day looking for IRQ conflicts, removed my Logitech device etc., but no luck. I have tried to download and install the driver from this site, but that does not work either. Looks like it cannot find the .inf file for Windows USB Audio 6.1.7601.18208. Installing compatibility mode does not seem to work either. Any suggestions? Thanks!
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  • Hi,
    Have you tried installing using the administrator account. Sometimes using a regular user account and running as administrator just isn't enough, you actually have to be logged in as admin.

    Kind regards
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  • Hi, yes, I have tried it as an admin. The installer from M-Audio does not do anything either. On my other Windows 7 SP1 box, all I had to do was to plug in the USB and it popped up. I am going to look and see whther my attempt to install my older M-Audio (Digidesign) caused some problem on this box (I did not install that on the other box). Thanks!
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  • Couple of other observations. On my working Windows 7 box, the device shows up as USB Audio. On the failing box, it identifies as M-Track with the yellow caution sign on it. I tried uninstalling that device, but is seems to cache it somewhere and picks it back up! So it finds the bad device info somehow each time. I have now spent over 12 hours straight trying to debug ... Also, I could not find any residual legacy M-Audio devices installed.
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  • I tried copying over the drivers from the working machine, but that does not help since it is looking for a .inf file, not .sys etc. Microsoft does not seem to have the .inf for download anywhere either for this USB Audio device/version
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  • Frank,

    Thanks for posting and sorry for the difficulty. I believe I can help!

    Here's a Dropbox link for the Windows (XP, Vista, and 7) INF/PNF files and USB Audio Codec.

    Windows Audio/MIDI Class-Compliant Driver

    These are system level files, so please be careful and closely follow the provided instructions for where to place these files.

    Restart after replacing the files and let's see what happens. Let me know when you've downloaded the files, as I will be taking the link down afterwards.
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  • Dan and Stephen (M-Audio) and Champ, thanks for trying to help me.

    The drivers that you gave me seem to be 32-bit so they were not recognized. I finally assembled all the needed files from another 64-bit Win 7 box, put them all in one directory. Even then, update drivers did not work. I had to use the option to "Pick from a List of Device Drivers on my Computer", select Sound devices from the next tab. It took a long time to think, but it finally did it.

    Also, please note: The system did not allow me to copy or alter or delete any files from my Windows\System32\Drivers area. I even tried command line (including Run As Admin, cygwin (Admin mode)) and I could not overwrite. In any case, I now have Ableton able to see M-Track! Hope this helps others with a similar issue.

    So, the 64-bit files that are need are:

    From C:\Windows\Inf: wdma_usb.inf, wdma_usb.PNF
    From C:\System (or 32, if 32-bit): WMALFXGFXDSP.dll and SysFxUI.dll
    From C:\System32\Drivers: drmk.sys, ksthunk.sys, portcls.sys, USBAudio.sys

    Provider: Microsoft, who is also Digital Signer.
    File version: 6.1.7601.18276 (win7sp1_gdr.131003-1533)

    You should be able to get the above from any working Windows 64 box. Even if it does not have M-Track on it.

    This all took me over 18+ hours of trying. Hope this helps others solve this specific issue if they come across it.

    Note 1: I had a Logitech webcam, and it does not seem to conflict after all. I simply uninstalled the device and reinstalled it after the M-Track.

    Note 2: The only other USB (other than keyboard and mouse) was my Wireless Network N device. I doubt that it conflicted either.

    Performance: With Ableton, I noticed a definite lag in Audio even though my PC is a high-performance box (Quad Core i7 with 12G of RAM).

    I have yet to test midi.
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  • Frank,

    Thanks so much for the info! I'll assemble those files for future use.

    Regarding the lag in Ableton; what is your "Buffer Size" settings (samples)?
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  • Where do I get from those files, Frank, in case I don't have another, working PC with Win7 x64 SP1? Weird
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  • OK I see now you said it should be there on any Win7 system. I have all these file on my current Win7 system, except the last file: C:\System32\Drivers\USBAudio.sys
    Where do I get form that one?
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