[error updating components SW2 and KLAVA. Database update failed! [Closed]]

Did you run into the same issue after 3 days?

No, I am running W10 and have had no problems since the re-install twenty days ago, it would appear to have fixed the problem for me as databases are all updating without further issues. When you remove Kaspersky do you do a reboot before installing again?

[error updating components SW2 and KLAVA. Database update failed! [Closed]]

Had the same problem with the same errors showing, only just noticed that the databases had not updated for two days, I can confirm that after a reinstall updates are now back to normal.

[Patch E for Kaspersky Internet Security version 19.0.0.1088 was released on April 8, 2019. Update required restart]

Finally update to Patch E here in the UK today and successfully changed to the Red K.