– Choose System devices from the list and click Next .
Tools like DSEO 1.3b can sign a specific .sys file with a test certificate, marking it as trusted. This method requires enabling Test Mode as well.
Memory conflict or old driver version.
If you are running Windows 11 on an (e.g., certain Microsoft Surface devices), an additional layer of complexity exists: the manufacturer (Thales/SafeNet) may not yet provide ARM‑compatible drivers. In such cases, the Virtual USB Multikey may simply not work, regardless of any workarounds.
The key to success lies in understanding the specific error you are facing. The is almost always related to driver signing issues, missing prerequisites, or Windows security features blocking the driver. By following the step‑by‑step installation and troubleshooting guidance provided in this article, you should be able to resolve the most common problems. Virtual Usb Multikey Code 39 Windows 11
Older versions of MultiKey (e.g., v0.18) are fundamentally incompatible with Windows 11. You must update to a version modified for modern x64 architecture (such as MultiKey 64-bit v0.20 or newer).
Troubleshooting Virtual USB MultiKey "Code 39" on Windows 11 – Choose System devices from the list and click Next
Multikey drivers (typically .sys files dated from 2005–2012) are or signed with deprecated SHA-1 certificates. Windows 11, especially on fresh installations, blocks loading such drivers via:
Windows 11's "Memory Integrity" feature often blocks the MultiKey driver because it uses older, unsigned, or non-HVCI-compliant code. How to Fix USB Driver Error Code 39 - Matsusada Precision Memory conflict or old driver version
Windows 11 introduces mandatory security features that actively conflict with legacy MultiKey drivers. The two main culprits are: