Your idea evaluation has expired. Your session will be limited to 30 minutes

解决办法：

1.delete C:UsersAdministratorAppDataLocalJetBrainsIntelliJIdea2020.2 all files（note：Administrator change to your account）
2. delete C:UsersAdministratorAppDataRoamingJetBrainsIdeaIC2020.2 all files （note：Administrator change to your account）
3.delete (register) HKEY_CURRENT_USERSoftwareJavaSoftPrefsjetbrains