I would also migrate, Your KTS 21.3 to the new product line, if already available in your county region, currently in version 21.16 (soon 22.17 still beta stage).
[URL unfurl="true"]https://forum.kaspersky.com/topic/kaspersky-basic-standard-plus-premium-info-faq-22816/#comment-98356[/URL]
Download: Kaspersky Free & Trial Downloads | Kaspersky
Your KTS license will activate the new Kaspersky Plus.:
[URL unfurl="true"]https://support.kaspersky.com/help/Kaspersky/Win21.16/en-US/152975.htm[/URL]
KTS for standard users with relatively safe habits is good enough, but even in that case, I would apply some stronger tweaks to harden the prevention.