1. May we know if any function will be affected without "Proactive Threat Protection" ? What does "the client software provide reduced protection against threats" mean?
the threats against zero day and components of SONAR and download insight will not be used.
2. We only need virus detection and clean action on our server. Can SEP work normally without "Proactive Threat Protection" ? We don't want to enable this tech .
Yes, you can install only SEP AV/
2. What about download Insight, we cannot find where to uncheck it from installlation package, but disable it in policy. Warning message displayed on SEP icon, is there anyway to remove this warning from SEP , or not to install this feature ?
have you restarted the machine?