Jlinkx64sys Jun 2026

Sometimes, a duplicate driver exists in the driver store. Use the pnputil /enum-drivers command (Method 2) to list all drivers, identify if there is a second jlinkx64.sys entry, and remove that one as well.

Use cases and workflow

Type cmd into the Windows search bar, right-click , and select Run as administrator . jlinkx64sys

The driver acts as the communication bridge between a Windows host computer and a SEGGER J-Link or J-Trace debug probe. USB Communication Sometimes, a duplicate driver exists in the driver store