Solved! I can't open Kaspersky Internet Security in Windows 10

Solution
Uninstall it and run a full malware check.

Then install an alternative -- there are still a few good free ones to be had -- Comodo being the best free one in my opinion:
https://antivirus.comodo.com/

I don't see the sense in paying for AV protection while ever Comodo remains free.
Uninstall it and run a full malware check.

Then install an alternative -- there are still a few good free ones to be had -- Comodo being the best free one in my opinion:
https://antivirus.comodo.com/

I don't see the sense in paying for AV protection while ever Comodo remains free.
 
Solution