How to uninstall the Office 2010 product key?

Firstly, you need to know the installation path of office, such as

C:\Program Files\Microsoft Office\Office14

Run cmd with administrator privileges

Entry code, and press Enter key

cd "C:\Program Files\Microsoft Office\Office14"

Enter the Office14, and entry code.

cscript ospp.vbs /dstatus

Get the last 5 number of product key.

Then entry the follow code to uninstall the product key.

cscript ospp.vbs /unpkey:xxxxx