First problem

when ou see ths screen...

 which means that you key is in the black list

the solution of this problem is by puting a new key

NB : you must delete the old key then you can put the new one

This is how you can do it :

Second problem

This problem is when the license key creation or activation is invalid

and the solution is...

either the key is old so you must change it...

or your system date is wrong so you must fix it by this way

Third problem

the causeof this problem is that your kaspersky is beta

and this beta have other spetial keys

and the solution is by downloading the final copy of kaspersky

then you must download new key

Fourth problem

and the cause of this problem is that you're using a key that is not compatible with this copy

by other meaning

you have the internet security and you are using the antivirus key

you have just to chage the key

First problem

when ou see ths screen...

 which means that you key is in the black list

the solution of this problem is by puting a new key

NB : you must delete the old key then you can put the new one

This is how you can do it :

Second problem

This problem is when the license key creation or activation is invalid

and the solution is...

either the key is old so you must change it...

or your system date is wrong so you must fix it by this way

Third problem

This problem is when the license key creation or activation is invalid

and the solution is...

either the key is old so you must change it...

or your system date is wrong so you must fix it by this way

.