OfficeScan clients keep two virus patterns. As a result, OfficeScan servers cannot roll back an OfficeScan client's virus pattern to any version that is older than the second virus pattern that the OfficeScan client keeps.
Need More Help?
Create a technical support case if you need further support.
[Hot Fix] B3320 - Server is unable to roll back an OfficeScan client virus pattern to an older version
Thank you for your feedback!