These error codes are returned by the Windows Installer functions MsiExec.exe and InstMsi.exe. If you feel you are in need of support for a Microsoft product, please go to our technical support site at. If you are a user experiencing difficulty with your computer either during or after installing or uninstalling an application, you should contact customer support for the software you are trying to install or remove. In the Processes tab (you may need to click More details), find all entries for 'Windows installer' or for Windows 8.1 and earlier, 'msiexec.exe.' Click each entry to select it and then click End Task or End Process.This article is intended for software developers who are using Windows Installer to build installer packages for their applications.

Open the Task Manager by pressing Ctrl + Alt + Delete on your keyboard and then click Task Manager or Start Task Manager (or right-click the task bar and click Start Task Manager). If you continue to receive this installation error, continue to Solution II below. Restart your ESET installation by double-clicking the installation package you downloaded previously. Wait for the other Windows installations to complete on your system (such as Windows updates). The other Windows installation may be active only in the background when the Windows Installer service continues to run as an active process.Ĭlick Close to end the ESET installation and to close the 'Installation has been interrupted' error window. This error typically occurs when another Windows installation is trying to install or update on your computer.

Complete other Windows installations that are in progress

To resolve this installation issue, follow the instructions below starting with Solution I.

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