How to retrieve your Office 2013 Product Key when it is lost
You may need to reset your computer, or just want o reinstall your Office 2013 application, or move it to a different computer. But unfortunately, before doing this, you may find that you forget or lost the product key.
How to find back Office 2013 lost Product key? Here is one method to retrieve your Office 2013 activation key after installing on PC device.
To check your Office 2013 last five characters of product key:
1. Get into your PC, open Command Prompt.
2. Type the appropriate script to Command Prompt, and press Enter to run it.
Scripts to find Office 2013 product key on your computer:
For 32-bit Office and 32-bit Windows: cscript "C:\Program Files\Microsoft Office\Office16\OSPP.VBS" /dstatus
For 32-bit Office and 64-bit Windows: cscript "C:\Program Files (x86)\Microsoft Office\Office15\OSPP.VBS" /dstatus
For 64-bit Office and 64-bit Windows: cscript "C:\Program Files\Microsoft Office\Office15\OSPP.VBS" /dstatus
After running the command, the last five characters of your Office 2013 product key will be showed for you. Match it up with the product key you find from your Office account page, and then you won't make it wrong.
If you didn't associate your Office product key with your Microsoft account, you may not be able to find it from your Office account page. Try to check it from registry:HKEY_LOCAL_MATHINE\Software\Microsoft\WindowsNT\CurrentVersion\DigitalProductID.