I have a unique question here today. I was able to obtain a pre-release Office 2013 Pro Plus retail key from the Microsoft contact I work with threw the company I work for. (Digital River) I assumed I would just be able to input the retail key in my existing Office 2013 installation, but apparently the KMS activator I used converted my copy of Office 2013 from Retail to Volume License. So I tried uninstalling and reinstalling Office 2013, but when I went to input my retail key, the KMS activation had apparently been saved on my system and I am still unable to use this key to permenatly activate my copy of Office 2013. So my question is... How do I remove this saved KMS activation for Office 2013? Thanks a lot guys! I really appreciate it!