Store your original .key files in a secure network share (e.g., \\server\licenses\kaspersky\ ) along with a backup on removable media. Do not rely on finding them after installation.
Recommended actions (for legitimate admin use)
Home products through the GUI. Instead:
From a security standpoint, the obfuscation of the license key file location post-installation is a critical feature. Once activated, the key data is integrated into the system registry or obfuscated within hidden system folders. This is not an oversight but a deliberate design choice. By hiding the location of the installed license data, Kaspersky prevents malware from easily harvesting valid license information to sell on the black market. It also prevents unauthorized users from copying the license file to another machine, a practice known as "credential dumping." Thus, the difficulty in locating the file after installation is, paradoxically, a feature of the antivirus protecting itself.
macOS
C:\ProgramData\Kaspersky Lab\AVP[Version Number]\Data\
If you don't have a file but have a , installation is much simpler: Open your Kaspersky application. Click License or Subscription in the lower-right corner. Click Enter activation code . Type in your code and click Activate . 4. Troubleshooting: "Key File is Invalid or Corrupted"