Update Issues checklist.
How do you connect to the internet? Is your internet connection ok? Is your internet connection metered?
Have you waited 15 minutes after system boot up to see if the update will occur?
Reboot, then check system date/time correct, then Settings > Additional > Network > Proxy server > select Do Not use proxy server.
Are you on battery or main power? Settings > Performance > uncheck Disable scheduled tasks.
Are you in Gaming Profile? Kaspersky Settings > Performance > uncheck Automatically disable some functionality when in full screen mode.
Is your Kaspersky license expiring in a few days?
If your license is a managed subscription, please click Subscription, located at lower right of the main Kaspersky window,
then click the "Update subscription status" button. Then start an Update.
Please also see: https://support.kaspersky.com/common/error/update/13285