Yes – if you already have Kaspersky installed on one PC:
Finally, the offline installer offers a layer of assurance regarding data integrity and privacy. When using an online installer, the user has little insight into what data is being transmitted back to the vendor during the download process, or whether the connection could be intercepted (a "man-in-the-middle" attack). By downloading the full installer package once from a secure, verified source—verifying its hash against the publisher’s checksum—the user ensures that the file being placed on the target machine is identical to the one released by Kaspersky. This eliminates the risk of a corrupted download mid-installation, which can leave a system in a vulnerable, half-protected state. It provides a "clean slate" installation experience, often allowing the user to run the setup without the background telemetry or promotional offers that sometimes accompany the online bootstrap process. kaspersky total security offline installer
Ransomware often blocks security-related domains. If you try to run the online installer, it will fail because the malware has redirected kaspersky.com to 127.0.0.1 . The offline installer bypasses this because it does not need to call home to download the base engine. Yes – if you already have Kaspersky installed