When you try to activate the license of Microsoft Office 365, Microsoft Office On-premise, Microsoft Office 2010, Microsoft Office 2013, or various versions of Microsoft Windows on a machine with OfficeScan 11.0 SP1 installed, users may see an error similar to the following:
Activating Windows(R) 7, Enterprise edition
On a computer running Microsoft Windows non-core edition, run 'slui.exe
0x2a 0x80070054' to display the error text.
This issue can be resolved by applying Critical Patch 4150-r2.exe, which is now available in Trend Micro Download Center.