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.

这是在网上搜到的，用得还可以，只是比较麻烦，听说有人做个了小的东西直接运行就可以的，但我还是习惯DIY.人笨点就笨点方法弄好了！