Well, as you can see.) But I've checked and asked in support specifically about version 21.3, not about 21.2, 21.1, 21.0.

So Total Security of Version 2021 will be activated by Plus right

@Tahmeed702

Also , a few years ago we have removed in the pinned Topic " The new licenses are interchangeable " in all language sections.

If your activation code is displayed in the My Kaspersky account, try to use it for activation. This activation definitely works for version 21.3. For 2019 - I don't know, try this.

Не подключается. Что делать? В предыдущие дни работало.

Try to move the game file from the Low restricted group to the Trusted one via drag-and-drop or right-click menu. It's also possible that there are some other game files, maybe with other names - search in the list and move to the Trusted group too.