Any idea how to resurrect it? I have tried AI system tricks today for two hours but no success. The driver installer is working well. The service Fast Track Monitor Device is running. The Device Manager is showing the device but is indicating it with the yellow sign. The properties are showing error 39.

 

You might've been hit by the most recent update for 25H2, see here for details: https://www.askvg.com/windows-11-2025-update-25h2-known-issues-and-workarounds/

Check the update history for KB5054156.

Might affect other things than audio, it's pretty widespread and a rollback has been issued but that might take a while. Try the link above for solutions or roll back yourself to a previous restore point. Or wait for a new driver from the vendor or a new fix from Microsoft, who knows at this point.

 

What AI service did you use? I typed your problem into chatGPT and got some solid possible solutions.
I hate posting AI solutions, but there may be a fix in there somewhere that you haven't tried yet.

Spoiler: chatGPT possible solutions

#1 M-Audio Fast Track Ultra : device manager shows a yellow icon, but The driver installer worked fine. The service Fast Track Monitor Device is running. getting error 39 in the properties view. how can i fix the device manager issue?

Error Code 39 in Device Manager means:

"Windows cannot load the device driver for this hardware. The driver may be corrupted or missing."

Since:

• ✅ The M-Audio driver installer completed successfully.
• ✅ The Fast Track Monitor Device service is running.
• ❌ Device Manager still shows a yellow warning icon with Code 39.

this usually points to Windows failing to load the driver rather than the installation failing.

Here are the most effective fixes, in order:

1. Verify Windows Version
The Fast Track Ultra is an older interface.

• Windows 7 → officially supported.
• Windows 8/10 → limited support.
• Windows 11 → generally unsupported.

What version of Windows are you using (10 or 11)? That changes the best solution.

2. Remove Every Trace of the Driver
Sometimes Windows keeps a broken driver package.

1. Disconnect the Fast Track Ultra.
2. Open Device Manager.
3. View → Show hidden devices.
4. Delete every:
   • M-Audio device
   • Fast Track device
   • Unknown USB Audio device related to it
5. Check Delete the driver software for this device whenever offered.

Then reboot.

3. Install the Driver as Administrator
Instead of plugging in the interface first:

1. Right-click installer
2. Run as Administrator
3. Reboot
4. Plug the interface into a USB 2.0 port (avoid USB hubs).

4. Check the Driver Signature
A Code 39 can happen if Windows blocks an older driver.

Open an elevated Command Prompt:

pnputil /enum-drivers

Find the M-Audio driver.

Also check Event Viewer:

Applications and Services Logs
Microsoft
Windows
Kernel-PnP

Look for an event explaining why the driver failed to load.

5. Check UpperFilters / LowerFilters
Code 39 is frequently caused by corrupted filter drivers.

Run regedit.

Navigate to:

HKEY_LOCAL_MACHINE
SYSTEM
CurrentControlSet
Control
Class


The Fast Track Ultra is usually under one of the audio device class GUIDs.

Look for values named:

UpperFilters
LowerFilters

If they reference software that is no longer installed, removing them (after exporting the key first) can resolve Code 39.

Be careful: only remove filter values after backing up the registry key.

6. Look at the Driver File
Open Device Manager.

Properties → Driver tab.

Does it show:

• a provider?
• a driver version?
• or is the Driver tab mostly blank?

If the Driver tab is blank, Windows never successfully associated the driver.

7. Force the Driver
Sometimes Windows chooses the wrong driver.

Device Manager →

Update Driver →

Browse my computer →

Let me pick →

Select the M-Audio driver manually.

8. Check Memory Integrity
Windows 10/11's Core Isolation / Memory Integrity blocks many old audio drivers.

Open:

Windows Security
Device Security
Core Isolation

If Memory Integrity is ON, temporarily turn it OFF and reboot to test whether the driver will load.

9. Verify the Driver Files Exist
Check:

C:\Windows\System32\drivers

Look for M-Audio driver files (often beginning with maudio or maui). If they're missing, the installer may not have copied them correctly.

10. Check the Actual Device Status
Open an elevated Command Prompt:

pnputil /enum-devices /problem

This can provide more detail than Device Manager alone.

The Information That Would Help Narrow It Down
Please provide:

1. Windows version (Windows 10? Windows 11? Build number if possible)
2. 64-bit or 32-bit
3. The exact driver version you installed (for example, 6.1.10 or 6.1.11)
4. The Hardware IDs from:
   • Device Manager → Properties → Details → Hardware Ids
5. The entire text shown on the General tab of the device properties (including the exact Code 39 message).

With that information, I can usually determine whether this is:

• a driver-signature issue,
• a filter-driver problem,
• a USB enumeration problem,
• or an incompatibility between the Fast Track Ultra driver and your version of Windows.

------------------------------------------------------------------------------------------------------------------

#2 ".......win 11 25h2"

Windows 11 25H2 is very likely the root of the problem.

The M-Audio Fast Track Ultra is not listed as supported on Windows 11 by M-Audio. The last official drivers were written long before Windows 11, and newer Windows security features increasingly prevent these legacy kernel drivers from loading.

Since you're getting Code 39, here's what I'd try in order:

1. Check whether Memory Integrity is blocking the driver.
   • Settings → Privacy & Security → Windows Security → Device Security → Core Isolation.
   • If Memory Integrity is ON, turn it OFF and reboot.
   • Reinstall the Fast Track Ultra driver afterward.
   • This is one of the most common reasons older audio drivers fail to load on Windows 11.
2. See if Windows is explicitly blocking the driver.
   Open an Administrator Command Prompt and run:
   
   driverquery /v | findstr /i maudio
   
   Then open Event Viewer:
   
   • Windows Logs → System
   • Filter on Kernel-PnP and CodeIntegrity
   If Code Integrity reports that the M-Audio driver was blocked, you've found the cause.
   
   
3. Tell me the driver version.
   Many users report that 6.1.8 is the only version they've been able to get working on Windows 11, while newer or older packages often fail. This isn't an official recommendation from M-Audio, but it has come up repeatedly in community reports.
4. Check whether Hyper-V / VBS is enabled.
   Run:
   
   msinfo32
   
   Look for:
   
   • Virtualization-based security
   • Hypervisor enforced Code Integrity
   If either is enabled, that can prevent legacy drivers from loading.
   

I have one more question
Can you tell me:

• Is the device listed under "Sound, video and game controllers", or under "Universal Serial Bus controllers"?
• In Device Manager → Driver tab, who is the Driver Provider, and what is the Driver Version?

Also, please run this command in an elevated Command Prompt and paste the output:



That will tell us exactly why Windows is refusing to load the driver. From there I can usually determine whether it's:

• a blocked driver signature,
• a missing dependency,
• or a registry/filter issue.

 

I used Gemini. It also gave me “solid” answers, changes in Privacy and Security, registry, BIOS etc.

 

@nmkeraj Please, let us know if you sort this out. I also have Fast Track Ultra and some Win11 25H2 computers (although I have blocked updates with WUB).