A client needs to be downgraded from a newer version of Symantec Endpoint Protection (SEP) to an older version.
In order to move from a newer version of SEP to an older version, uninstall the new version and install the older version. There is no supported method to migrate from a newer to an older version.
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Submit a suspected infected file to Symantec.
Report a suspected erroneous detection (false positive).
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