Kaspersky Total Security 2021 21.3.10.391 For W... Patched May 2026
Kaspersky Total Security 2021 (version 21.3.10.391) is a comprehensive security suite for Windows designed to protect against malware, ransomware, and identity theft
Released in early 2021, this specific version focused on stability and modern OS support: Windows 10 Version 21H1 Support : Full compatibility with the May 2021 Windows update. Enhanced Web Anti-Virus Kaspersky Total Security 2021 21.3.10.391 for W...
- Content filtering, screen time limits, app controls, location tracking (where supported).
- Example: restrict social apps and set weekday screen‑time windows for children’s accounts.
- Web filtering (blocking adult, gambling, or violence content)
- App usage limits (time limits on Fortnite or TikTok)
- Social network monitoring (tracking friends lists on Facebook, though limited due to API changes in 2021)
- Real-time GPS tracking for Android child devices
- Idle CPU usage: 0–2%
- Background scan: 10–20% CPU, light disk I/O
- Full scan: ~30% CPU, took 45 min for 500GB drive
- Boot time increase: ~3–5 seconds
- Gaming impact: Negligible (Game Mode auto-detects full-screen apps)
2. Privacy and Financial Safeguards
The 2021 edition placed a heavy emphasis on the intersection of security and privacy. Kaspersky Total Security 2021 (version 21
"Kaspersky Total Security 2021 (version 21.3.10.391) for Windows – comprehensive multi-device security including antivirus, VPN, password manager, and parental controls." Web filtering (blocking adult
The Installation Experience: Version 21.3.10.391 streamlined the installation to under two minutes. One notable feature during the setup was the "Installation Assistant," which scanned for conflicting security software (like McAfee or Norton remnants) and removed them automatically. The installer weighed approximately 180 MB.
