Outdated versions of Microsoft Windows
Issue
•You want to install the latest version of ESET Security Ultimate on a computer with Windows 7, Windows 8 (8.1) or Windows Home Server 2011
•ESET Security Ultimate displays an error Outdated operating system during the installation
Details
The latest version of ESET Security Ultimate requires Windows 10 or Windows 11 operating systems.
Solution
The following solutions are available:
Upgrade to Windows 10 or Windows 11
The upgrade process is relatively easy, and in many cases, you can do it without losing your files. Before upgrading to Windows 10:
1.Back up important data.
2.Read Microsoft's Upgrade to Windows 10 FAQ or Upgrade to Windows 11 FAQ and update your Windows operating system.
Install ESET Security Ultimate version 16.0
If you cannot upgrade Windows, install ESET Security Ultimate version 16.0. See the ESET Security Ultimate version 16.0 Online Help for more information.