1
You can use the COA to install using an OEM disc, yes.
Bear in mind that for VAIO notebooks, you'll need to follow the Install Order on Sony's support site if you want basically anything on the notebook to work properly (wireless and webcam are the major problems).
Yes I know. Will test tommorow. – jtl999 – 2012-03-11T04:56:45.450
We are talking about the COA sticker – jtl999 – 2012-03-11T04:27:37.390