Free Access to KAV/KIS 6.0/7.0:
1.Shut down Kaspersky.
2.Run regedit, and remove the following registries. (Key Removal)
HKEY_LOCAL_MACHINE\SOFTWARE\KasperskyLab\LicStorage
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Cryptography\RNG
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\SPC\Certificates
3.Run Kaspersky, choose 30-day trial key and activate.
4.When the 30-day trial key expired, run these steps again.
