Application of the Windows 10 feature update program (November 2019 Update. Ver.1909) may cause problems such as not functioning of the application such as Virus Buster.
The application of the feature update is done automatically by Windows Update, but you can postpone the application of the update by setting.
You can also revert to the previous version after applying. It may not be possible depending on the conditions.
Please refer to the following and deal with as necessary.
Trend Micro Corp has announced that the supported version will be delivered around in the mid December.
Please do not proceed Windows 10 update process before delivery of Virus Buster supported version.
The above is for reference only. Please do it at your own risk. Academic Computing & Communications Center can not provide individual support.