1.Shut down Kaspersky. 首先彻底关闭卡巴斯基
2.Run regedit, and remove the following registries. (Key Removal) 注册表删除以下键值 （找注册表的方法.开始－运行－regedit）
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.When the 30-day trial key expired, run these steps again.运行卡巴 选择30天试用 待试用期结束 再重复以上过程
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