Kaspersky Total Security 2021 21.3.10.391 For W... May 2026

This was a standout feature for Windows users. The software allowed users to schedule automatic backups to:

Unlike cloud-first solutions, this tool allowed a "bare metal" recovery USB creation.

What distinguished "Total Security" from the standard "Internet Security" package was the inclusion of advanced utility features designed for comprehensive digital management: Kaspersky Total Security 2021 21.3.10.391 for W...

The build number 21.3.10.391 corresponds to a mid-cycle update for the 2021 lineup.

If you are currently running this version, ask yourself: This was a standout feature for Windows users

Stay on 21.3.10.391 if:

Upgrade immediately if:

Before you commit to using this legacy version in 2024/2025, know the downsides:

Published: October 2023 (Updated for Legacy Software Context) Unlike cloud-first solutions, this tool allowed a "bare

The 2021 interface was designed for clarity. The main dashboard provided a clear, color-coded status (Green for secure, Red/Yellow for issues). The settings menu, while comprehensive, was restructured to make advanced features like application control and network attack blocker more accessible to average users.

✘ Geopolitical trust concerns for some users
✘ Password manager & VPN are limited in free form
✘ Slight learning curve for advanced settings
✘ No longer receiving feature updates (stuck at 2021 feature set)