From time to time, Trend Micro releases a patch for a reported known
issue or an upgrade that applies to the product. Find available patches at http://downloadcenter.trendmicro.com.
Procedure
Go to Administration → Product Updates → Hotfixes / Patches.
Under History, verify the software version number.
Manage the product patch.
Upload a patch by browsing to the patch file provided by Trend Micro Support and
then clicking Install under Install Hotfix / Patch.
Roll back a patch by clicking Roll Back under
History. After rollback, ATP Email uses the most recent
previous configuration. For example, rolling back patch 3 returns ATP Email to a patch 2 state.
