I am not sure if it’s right place to ask however this query is purely from experimental & educational point of view. I was experimenting with Office 2013 SP1 rearm counter and found out that Office 2013 Volume can be rearmed max 3 times. Thereafter it does not allow further rearm’s. Additionally running the command slui.exe <followed by error code> informs (I am surprised by the message) to reinstall the OS to initiate further rearm !!!! The message should ideally state that activation is needed and not tell a workaround in the first place!! I was wondering if there exists or has anyone found out a trick to reset the rearm counter for Office 2013 back to 0 after all rearm attempts are exhausted. I guess there should be some registry entries that must be pointing to rearm count and some hack should be able to reset the entries somehow.