Finding a legitimate installer for an older version is critical. Downloading from third-party "warez" or "mirror" sites is dangerous, as these files are often bundled with malware.

Note that version 9.1 is the last compatible version for Windows 7 and 8.1. ESET Security Forum 🔄 How to Update or Upgrade

ESET provides access to previous versions (such as Version 9, which was the last to support Windows 7) through their business download page.

You can transition from an outdated version to the current release using these primary methods:

to find direct links for offline installers of older versions. Version 9.1 for Windows 7: