Resolves ambiguous errors; can unblock codes erroneously flagged. Limitations: May take minutes to hours; requires personal information. 2.5 Offline Installation File Method (No Internet on Target Machine) In air-gapped environments, Kaspersky allows offline activation using a key file ( .key extension). Validity checking here is indirect.
Kaspersky Activation Code Checker (web). How To Check Kaspersky Activation Code Validity
avp.com LICENSE STATUS Or to test a specific code: Resolves ambiguous errors