Lost the activation key but have the license number

[AndreiStirbu]

I upgraded today from Windows 10 to Windows 11 and the Kaspersky Internet Security which was installed with Windows 10 got erased from computer. Before installing the Windows 11, I thought I saved from my installation of Kaspersky the key, but it seems I saved the license number, as is longer and I cannot activate a new copy of KIS.

Is anyway to retrieve back my activation key, if I have the license number?

Thank you!

[Berny]

@AndreiStirbu Welcome

Please contact Kaspersky Technical Support 
https://support.kaspersky.com/b2c/#contacts

Also , you can upgrade for free to Kaspersky Standard