The ESET Smart Security Premium offline installer is an excellent choice for advanced users, IT pros, or anyone needing to install security software without an internet connection. It retains all the speed, low resource usage, and top-tier protection of ESET’s suite. The only real downside is outdated definitions post-install — but that’s true for any offline antivirus installer.

If you manage multiple PCs, work offline, or just prefer full control, get the offline installer. For casual single-PC home use, the online installer is simpler. Either way, the product itself remains one of the best paid security suites available.