Unable to link Windows Kernel32 library native methods and handlers will be disabled – How to solve this OpenSearch error

Opster Team

Aug-23, Version: 1-2.9

Before you dig into reading this guide, have you tried asking OpsGPT what this log means? You’ll receive a customized analysis of your log.

Try OpsGPT now for step-by-step guidance and tailored insights into your OpenSearch operation.

Briefly, this error occurs when OpenSearch is unable to link to the Kernel32 library, a critical component of the Windows operating system. This could be due to incorrect system path settings, missing or corrupted library files, or insufficient permissions. To resolve this issue, you can try reinstalling or repairing your Windows OS, ensuring that the system path is correctly set, or running OpenSearch with administrative privileges. If the library files are missing or corrupted, you may need to obtain a fresh copy from a trusted source.

For a complete solution to your to your search operation, try for free AutoOps for Elasticsearch & OpenSearch . With AutoOps and Opster’s proactive support, you don’t have to worry about your search operation – we take charge of it. Get improved performance & stability with less hardware.

This guide will help you check for common problems that cause the log ” unable to link Windows/Kernel32 library. native methods and handlers will be disabled. ” to appear. To understand the issues related to this log, read the explanation below about the following OpenSearch concepts: bootstrap.

Log Context

Log “unable to link Windows/Kernel32 library. native methods and handlers will be disabled.” classname is JNAKernel32Library.java.
We extracted the following from OpenSearch source code for those seeking an in-depth context :

                logger.debug("windows/Kernel32 library loaded");
            } catch (NoClassDefFoundError e) {
                logger.warn("JNA not found. native methods and handlers will be disabled.");
            } catch (UnsatisfiedLinkError e) {
                logger.warn("unable to link Windows/Kernel32 library. native methods and handlers will be disabled.");

    static JNAKernel32Library getInstance() {


How helpful was this guide?

We are sorry that this post was not useful for you!

Let us improve this post!

Tell us how we can improve this post?

Get expert answers on Elasticsearch/OpenSearch