Open Windows Search, type services.msc , locate Windows MIDI Service , and click Restart . 2. Waiting for Official Fixes
The core issue is not a flaw in loopMIDI itself, but a fundamental change in how Windows 11 handles MIDI. With the , Microsoft began a widespread rollout of a new, modern MIDI 2.0 driver stack . MIDI 2.0 is a major overhaul designed to bring higher resolution, better timing, and two-way communication to the aging MIDI 1.0 standard.
You will now see the familiar interface. Click the icon at the bottom to create a virtual port (e.g., "loopMIDI Port 1").
: Windows 11 now includes Native MIDI 1.0 Loopback endpoints. You can manage these via the new MIDI Settings app (available in the SDK runtime), which performs the same function as loopMIDI but is built directly into the OS. Comparison: loopMIDI vs. Native Windows Loopback Loop Midi hidden in Windows 11 25H2 fix - Page 2 - Cubase loopmidi windows 11 patched
: Launch the application from your Start Menu. It will run as a system tray icon.
LoopMIDI is a popular, free software tool developed by Tobias Erichsen that has been a staple for Windows-based musicians, audio engineers, and developers for years. It creates on your system, which act as internal cables, enabling seamless MIDI data transfer between different applications as if they were connected via hardware. This eliminates the need for physical MIDI cables or external hardware for internal communication, making it invaluable for tasks like:
While loopMIDI has struggled with compatibility, another well-known virtual MIDI driver has stepped up. Users on the Steinberg forums have reported that , a utility from Nerds.de (the same developer as loopMIDI), works flawlessly on the latest Windows 11 builds. The straightforward solution is to simply uninstall loopMIDI and install LoopBe1. After a system restart, you can configure your applications to use the new LoopBe1 ports, and your MIDI routing should function normally again. Some users have even reported better performance and reduced latency with LoopBe1 compared to the original loopMIDI. Open Windows Search, type services
The search for a "patched" loopMIDI is likely a short-term necessity. Microsoft has publicly acknowledged the problem, and an official solution is on the horizon. The same Microsoft engineer stated that the team is "still working on the actual fix so that loopMIDI and similar will work". The expectation is that a future Windows Update will restore compatibility.
However, the pursuit of a "patched" version carries significant risks that underscore a larger issue in audio software reliance. Downloading unsigned, "patched" low-level drivers from third-party forums or file-sharing sites is a prime vector for malware. MIDI drivers operate at a high privilege level within the system; a compromised driver can theoretically control far more than just audio signals. Furthermore, relying on community patches instead of official development creates a fragmented user base. When a user encounters a bug in a "patched" build, the original developer cannot offer support, and the community solution becomes a labyrinth of conflicting advice.
Right-click the installer executable and select Run as administrator . This grants the setup tool permission to install the virtual MIDI driver into the Windows kernel framework. 2. Configure Windows 11 Memory Integrity (Core Isolation) With the , Microsoft began a widespread rollout
If the installer fails due to driver blocking, toggle to Off temporarily. Reboot your computer.
: Note that these native loopbacks use a "Pair" system (Loopback A sends to Loopback B), unlike loopMIDI's single-port approach. Method 3: Uninstall the Preview Update
Installing the patch is a straightforward process that requires just a few steps: