Always add your new key file as a before your current license expires.The software will seamlessly transition to the new license without user interruption. Troubleshooting Common Key File Errors Error Message / Issue Root Cause Quick Solution "Key is invalid" Corrupted file or wrong product version. Redownload the key from the activation portal. "Key is blocked" Key blacklisted due to overuse or piracy. Contact Kaspersky support with proof of purchase. "Expiration date mismatch" System clock on the client machine is wrong. Synchronize the endpoint time with an NTP server. Key won't distribute Network agent connection failure. Force a synchronization via Kaspersky Security Center.
When you purchase or renew a business license, Kaspersky typically sends the key file directly to the registered administrator's email. Via Support: kaspersky endpoint security key file new
To obtain a new key file for Kaspersky Endpoint Security, follow these steps: Always add your new key file as a
Assign the task to your target managed devices or device selections. "Key is blocked" Key blacklisted due to overuse or piracy
Store downloaded .key files on a secure, restricted-access network share. If unauthorized users gain access, they could leak the key, leading to its blacklisting.