Windows 10 users who are using the trend micro antivirus may face issues with the latest windows 10 updates (version 1809). Microsoft has re-released this update after a pause due to some bugs. Microsoft and trend micro reported a compatibility issue with OfficeScan and Worry-Free Business endpoint security software. So Microsoft has blocked the updates for these users. To know the status and update history of Windows 10. Follow this link at Microsoft.
Windows stated that “To ensure a seamless update experience, we are blocking devices running the affected business endpoint security products from being offered Windows 10, version 1809, until a specific Trend Micro Critical Patch (CP) is applied.”
So new update can only be applied when Trend Micro will apply the Critical Patch to its security software. First you need to update the Trend Micro software. To know the Trend Micro status about this issue. You can refer to this page at Trend Micro.