All of a sudden Excel's macros are no longer working in some Excel sheets.
I have been able to find the culprit update: KB2553154
From: http://stackoverflow.com/questions/27411399/microsoft-excel-activex-controls-disabled
fix is to simply delete the file MSForms.exd from any Temp subfolder in the user's profile. For instance:
C:\Users\[user.name]\AppData\Local\Temp\Excel8.0\MSForms.exd
C:\Users\[user.name]\AppData\Local\Temp\VBE\MSForms.exd
C:\Users\[user.name]\AppData\Local\Temp\Word8.0\MSForms.exd
On the other hand i have a user that has the issue but th eupdate is not there, i have uninstalled Office 2010 and installed 2013 but Macros are blocked