How to find out Office 2010 and 2013 product key

1. Open a command prompt. For instance via:
   • Start-> All Programs-> Accessories-> Command Prompt
   • Windows XP 
     Start-> Run: cmd
   • Windows Vista, Windows 7 and Windows 8
     Start-> type: cmd
2. In the command prompt, type the following:
   • Office 2010 (32-bit) on a 32-bit version of Windows 
     cscript "C:\Program Files\Microsoft Office\Office14\OSPP.VBS" /dstatus
   • Office 2010 (32-bit) on a 64-bit version of Windows 
     cscript "C:\Program Files (x86)\Microsoft Office\Office14\OSPP.VBS" /dstatus
   • Office 2010 (64-bit) on a 64-bit version of Windows 
     cscript "C:\Program Files\Microsoft Office\Office14\OSPP.VBS" /dstatus
   • Office 2013 (32-bit) on a 32-bit version of Windows 
     cscript "C:\Program Files\Microsoft Office\Office15\OSPP.VBS" /dstatus
   • Office 2013 (32-bit) on a 64-bit version of Windows 
     cscript "C:\Program Files (x86)\Microsoft Office\Office15\OSPP.VBS" /dstatus
   • Office 2013 (64-bit) on a 64-bit version of Windows 
     cscript "C:\Program Files\Microsoft Office\Office15\OSPP.VBS" /dstatus
3. You should now get a screen with some license details such as the license name, type and the last 5 characters of the Product Key.