Windows will attempt to repair any corrupted system files that might be interacting poorly with the driver. Is jlinkx64.sys a Virus?
jlink --module-path /path/to/modules \ --add-modules java.base,com.example.module \ --output /path/to/output/image
This occurs because older J-Link drivers (with driver dates like 1/8/2007 and versions as low as 2.6.5.0) lack proper Microsoft certification for modern security features. jlinkx64sys
Restart your computer and attempt to turn on Memory Integrity again. Method 2: Manually Remove the Driver via Command Prompt
If the issue persists, the J-Link hardware or the USB cable might be faulty. If you are still having trouble, J-Link / J-Trace Downloads - SEGGER Windows will attempt to repair any corrupted system
Many users encounter jlinkx64.sys when Windows Security alerts them that (a subset of Core Isolation) cannot be turned on due to an incompatible driver.
# Locate the binary which jlinkx64sys find / -name jlinkx64sys 2>/dev/null Restart your computer and attempt to turn on
C:\Program Files\SEGGER\JLink\
This design choice by SEGGER—avoiding custom kernel modules—means that J-Link works "out of the box" on virtually any Linux distribution without requiring kernel recompilation or proprietary module signing.
You might wonder why the 64-bit driver ( jlinkx64 ) is relevant to this feature.
When Windows 10 or 11 updates its security features, particularly Memory Integrity (Core Isolation), outdated drivers like an old version of jlinkx64.sys can trigger incompatibility issues, leading to error messages, installation failures, or even Blue Screen of Death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.