# Understanding MSI Error Code 1618

## Overview

MSI Error Code 1618 is a common issue encountered during software installations or updates on Windows systems.

This error indicates that another MSI-based installation is already in progress, which blocks the current installation or update from proceeding. Although this error can occur while updating or operating the **AIR Responder**, it is not caused by the AIR Responder software itself.

## Why Does This Error Occur?

The error code is related to the Microsoft Windows Installer service. It typically appears when:

* Another installation is already running in the background (e.g., a Windows update or another MSI-based installer).
* The Windows Installer service is locked by a pending installation or system process.

Since this issue originates from the Windows environment, resolving it involves managing the underlying MSI processes.

## Steps to Resolve MSI Error Code 1618

1. **Check for Running Installations**

* Manually verify if there are any ongoing installations:
* Open **Task Manager** (Ctrl + Shift + Esc).
* Look for any processes related to Windows Installer or other installation programs (e.g.,`msiexec.exe`).
* End these processes if they are blocking the current installation.\\

2. **Check for Pending Windows Update**s

Sometimes, a pending or ongoing Windows update can cause this error. Follow these steps:

* Go to **Settings > Update & Security > Windows Update.**
* Check if there are any updates in progress or requiring a restart to complete.
* Allow the updates to finish or reboot the machine to clear them.

3. **Restart the Windows Installer Service**

Restarting the Windows Installer service can resolve locked or unresponsive installer issues:

1. Open the Run dialog box (`Win + R`).
2. Type `services.msc` and press Enter.
3. Locate the **Windows Installer** service (`msiserver`).
4. Right-click and select **Restart**.

**4. Reboot the System**

The simplest and most effective first step is to reboot the affected machine. Rebooting clears any pending installations or processes using the Windows Installer service.

#### Additional Notes

You can also refer to Microsoft's official support page for more details:

<https://answers.microsoft.com/en-us/windows/forum/all/error-code-1618-when-trying-to-install-new/fb4e98b3-59d9-4cfd-916c-215502864bce>

#### Need Further Assistance?

If you continue experiencing issues or have additional questions, please contact our support team at: **<support@binalyze.com>**

{% hint style="warning" %}
If you experience this error while updating or operating the **AIR Responder**, it is not caused by the AIR Responder software itself.
{% endhint %}