If you no longer use the development tools, removing the driver completely will resolve the error.
This happens because older versions of the driver do not comply with modern Microsoft kernel driver-signing requirements or lack compatibility with virtualization-based security (VBS). How to Fix jlinkx64.sys Incompatibility Issues
Click in the top menu bar, and choose Devices by driver .
The file is a 64-bit kernel-mode device driver. It is developed by SEGGER Microcontroller. It allows Windows to communicate with J-Link hardware debuggers. Developers use these tools to program embedded systems. jlinkx64sys
Conclusion jlinkx64sys is a crucial system-level component in the J-Link toolchain, enabling robust communication between host development environments and J-Link debug probes. It supports the essential functions developers rely on for debugging, programming, and advanced trace features in embedded development, while fitting into a broader ecosystem of tools, drivers, and alternatives.
: If the probe isn't recognized, check Device Manager to ensure "J-Link driver" is listed without errors.
When Windows detects these outdated versions, it prevents users from enabling Memory Integrity, a feature designed to stop hackers from using high-level code to take control of a device. Microsoft Learn Resolution and Management If you no longer use the development tools,
Windows 10 and 11 offer a security feature called , which uses virtualization-based security (VBS) to protect sensitive system processes. A key part of this is Memory Integrity (or Hypervisor-protected Code Integrity - HVCI).
If you remove this driver, you will not be able to use your Segger J-Link debugging probe. If you are not actively working on embedded systems, removing it will not affect your PC functionality. I've Deleted It, But It Still Shows in Windows Security?
When Windows 10 or 11 updates its security features, particularly Memory Integrity (Core Isolation), outdated drivers like an old version of jlinkx64.sys can trigger incompatibility issues, leading to error messages, installation failures, or even Blue Screen of Death (BSOD) scenarios. The file is a 64-bit kernel-mode device driver
When you plug in a J-Link, the Windows Plug and Play (PnP) manager identifies the device and loads this driver so that software like , Ozone , or your IDE (Keil, IAR, VS Code) can send instructions to the microcontroller’s CPU. Key Functions of the Driver
从Windows 10 RS5（版本1809）开始，微软显著收紧了内核模式驱动的准入门槛。所有 .sys 文件，否则内核将直接拒绝加载。到了Windows 11，安全要求进一步提升：HVCI（Hypervisor-protected Code Integrity）配合Secure Boot的双重保护下，未经微软WHQL认证签名的驱动几乎无法正常运行。
sudo udevadm control --reload-rules sudo udevadm trigger
The story of jlinkx64.sys is one of old hardware tools meeting modern security standards. Far from being a mysterious virus, it is a legitimate driver for , one of the most widely used debug and trace probes in the world for embedded system development. The Role of the Driver
After installation, open Device Manager → Universal Serial Bus devices → . Right-click → Properties → Driver Details. You should see: