Eset will support products that are mainstream and supported by, in this case, Microsoft. Windows 7 is now EOL, you cannot expect a product to fully protect you if you choose not to protect yourself with the most up to date supported OS. Microsoft no longer release updates for Windows 7 so you will become more vulnerable over time. This is not just Eset, other companies will also stop supporting out of dates operating systems at some point. Code has to be written to work with security changes within the OS’s. You don’t say why you will not upgrade from Windows 7. If you don’t I suggest you disconnect yourself from the internet.