Mastercam X7-2022 Virtual Usb Bus Error 39 -

Home Blogs Risalah PDF

Mastercam X7-2022 Virtual Usb Bus Error 39 -

Mastercam Virtual USB Bus Error 39 typically occurs in Windows 10 and 11 environments because of a conflict between the virtual hardware key (HASP/dongle) drivers and modern Windows security features. This error prevents Windows from loading the necessary driver for the hardware, effectively locking users out of the Mastercam software. The Core Cause: Memory Integrity

The most frequent cause of Error 39 is a Windows security feature called Core Isolation (specifically Memory Integrity

. This feature prevents unauthorized code from accessing high-security processes but often flags the virtual USB bus drivers used by legacy or specific software versions like Mastercam X7–2022 as incompatible or "corrupted" Effective Solutions

To resolve this error and restore Mastercam functionality, users can apply the following methods: How to Fix USB Driver Error Code 39 - Matsusada Precision

The Virtual USB Bus Error 39 in Mastercam (X7 through 2022) typically indicates that Windows cannot load the required hardware driver because it is either corrupted, missing, or blocked by system security features. This error often appears as a yellow exclamation mark in the Device Manager under "Universal Serial Bus controllers" or "Virtual USB Bus Enumerator".

Below is a draft for a blog post providing step-by-step solutions to resolve this issue. How to Fix Mastercam Virtual USB Bus Error 39

Running legacy or even modern versions of Mastercam (X7 to 2022) can sometimes lead to the frustrating Virtual USB Bus Error 39. This error usually means your license dongle (HASP) or the virtual bus driver used to communicate with it isn't loading correctly. Here is how to fix it. 1. Disable Core Isolation (Memory Integrity)

The most common cause for Error 39 on Windows 10 and 11 is a security feature called Core Isolation. This feature can block older drivers from loading into memory. Open the Start Menu and type Windows Security. Go to Device Security > Core isolation details. Toggle Memory integrity to Off. Restart your computer for the changes to take effect. 2. Clear Registry "Filters" Mastercam X7-2022 Virtual Usb Bus Error 39

If disabling Core Isolation doesn't work, corrupted "UpperFilters" or "LowerFilters" in the Windows Registry might be the culprit. Press Win + R, type regedit, and hit Enter.

Navigate to: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\36FC9E60-C465-11CF-8056-444553540000.

In the right-hand pane, look for UpperFilters or LowerFilters. Right-click and Delete these entries. Restart your PC. 3. Reinstall USB Controllers Sometimes the driver stack just needs a hard reset. How to Fix USB Error Code 39 In Windows 10/8/7 [Tutorial]

Mastercam Virtual USB Bus Error 39 typically occurs when the Windows operating system cannot load the device driver for the hardware, often due to security features or corrupted registry entries. This error affects Mastercam versions from X7 through 2022, primarily on Windows 10 and 11, where advanced security settings may block older virtual drivers. Primary Causes Mastercam X7-2022 Virtual Usb Bus Error 39 - Google Groups

The "Mastercam X7-2022 Virtual Usb Bus Error 39" is a driver-related issue that primarily occurs when Windows security features or corrupted registry entries prevent the virtual USB driver (often associated with MultiKey or HASP emulators) from loading correctly. Primary Causes of Error 39

Core Isolation/Memory Integrity: Modern Windows security features often block older or unsigned drivers, such as those used for virtual USB emulation in older Mastercam versions.

Corrupted Registry Filters: Invalid "UpperFilters" or "LowerFilters" in the Windows Registry can prevent USB controllers from initializing. Mastercam Virtual USB Bus Error 39 typically occurs

User Profile Corruption: In some cases, frequent Mastercam crashes can corrupt the Windows user profile, leading to persistent driver errors.

Driver Incompatibility: Using drivers not designed for the specific version of Windows (e.g., trying to run Mastercam X7 drivers on Windows 11). Step-by-Step Troubleshooting Guide 1. Disable Windows Core Isolation

This is the most common fix for Error 39 on Windows 10 and 11.

Open Windows Settings and navigate to Privacy & security (or Update & Security on Windows 10). Select Windows Security > Device security. Click Core isolation details. Toggle the Memory integrity switch to Off. Restart your computer for the changes to take effect. 2. Modify Windows Registry (Delete Filters)

If the driver is still blocked, you may need to clear corrupted registry keys. Press Windows + R, type regedit, and press Enter.

Navigate to the following key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\36FC9E60-C465-11CF-8056-444553540000 In the right pane, locate UpperFilters and LowerFilters. Right-click and Delete these values. Restart your PC. 3. Update or Reinstall Virtual USB Drivers

Sometimes a clean reinstallation of the specific hardware driver is required. Mastercam X7-2022 Virtual Usb Bus Error 39 - Google Groups Navigate to C:\Windows\System32\drivers Locate hardlock

4. Manually Replace the Driver Files

For advanced users only:

  1. Navigate to C:\Windows\System32\drivers
  2. Locate hardlock.sys or haspflt.sys
  3. Rename them (e.g., hardlock.old)
  4. Copy fresh versions from a working Mastercam installation or official driver package.
  5. Run in Command Prompt (Admin):
    pnputil /add-driver "C:\path\to\your\inf\file.inf" /install

Phase 5: Mastercam Version-Specific Nuances

The error behaves differently across versions. Adjust your approach:

| Mastercam Version | Likely Cause | Best Fix | | :--- | :--- | :--- | | X7, X8, X9 | Windows 10/11 unsigned driver. | Test Mode or Windows 7 compatibility mode. | | 2020 | Memory Integrity block. | Turn off Core Isolation. Install Sentinel LDK 7.80. | | 2021 | Half-baked driver update. | Full clean reinstall (Phase 2) with Sentinel 7.92. | | 2022 | Conflict with CAD/CAM USB dongle (SolidWorks, Rhino). | Unplug all other USB dongles. Use USB Device Tree Viewer to check collisions. |

Introduction: The Licensing Roadblock

For machinists, CNC programmers, and manufacturing engineers, Mastercam is the gold standard in computer-aided manufacturing (CAM). However, with the evolution of its protection systems—specifically, the move from physical NetHASP (Hardware Keys) to software-based licensing—users running versions Mastercam X7 through 2022 often encounter a cryptic and frustrating hurdle: The Virtual USB Bus Error 39.

This error typically appears during installation or when launching the software, accompanied by a message stating: "Windows cannot load the device driver for this hardware. The driver may be corrupted or missing. (Code 39)" within the Device Manager under "Mastercam Virtual USB Bus."

If you are staring at this error, your machine is not broken, and your Mastercam license is likely still valid. This error is a pure Windows driver conflict that prevents the licensing emulator from communicating with your software. Below, we dissect why this happens and provide a surgical, step-by-step guide to eradicating Error 39 for good.

3. Diagnostic Methodology

Before applying a fix, the system state must be verified.

  1. Physical Verification: Ensure the Mastercam SIM (security dongle) is physically connected. Check if the LED on the dongle is illuminated (solid or blinking). If the dongle is dark, the issue may be physical or USB-port related, not Error 39.
  2. Device Manager Analysis:
    • Open Device Manager (devmgmt.msc).
    • Navigate to Universal Serial Bus controllers.
    • Look for an entry with a yellow exclamation triangle. It may be named "SafeNet Sentinel HL Key" or simply "Unknown Device."
    • Right-click > Properties. Under the General tab, verify the message: "Windows cannot load the device driver for this hardware. The driver may be corrupted or missing. (Code 39)."

Step 5: Fresh Install

  1. Do not plug in the USB dongle yet.
  2. Run the downloaded Sentinel_LDK_Windows_Run-time_Setup.exe as Administrator.
  3. Choose "Complete" installation.
  4. Reboot.
  5. Now plug in the dongle. Wait for "Device driver successfully installed".
  6. Launch Mastercam.

Mastercam Version-Specific Notes

| Version | Preferred Driver | Common Error 39 Trigger | | :--- | :--- | :--- | | Mastercam X7 - X9 | Sentinel HASP 8.31+ | Windows 11 block of unsigned drivers | | Mastercam 2017-2018 | CodeMeter 6.90a | Corrupt after SolidWorks installation | | Mastercam 2019-2020 | CodeMeter 7.00 | USB 3.0 controller driver conflict | | Mastercam 2021-2022 | CodeMeter 7.10c | Windows 22H2 update incompatibility |

Root Causes

There are three primary reasons this error occurs when dealing with Mastercam X7 through 2022:

  1. Driver Migration Conflicts: If you had Mastercam X7 installed and installed Mastercam 2022 without fully removing the old HASP/Sentinel drivers, the old driver files may conflict with the new ones. The system tries to load an outdated driver for the new software.
  2. Corrupted Registry Keys: Over time, or after Windows updates, the Upper and Lower filter registry keys associated with the USB controller can become corrupted. This prevents the Virtual Bus from loading.
  3. Windows Security Updates: Modern versions of Windows 10 and 11 sometimes enforce strict driver signature enforcement. Older drivers (common with X7 era utilities) may be blocked by Windows Defender or Driver Signature Enforcement policies.