can i convert the 2008 R2 evaluation to full with a license key

you need to purchase license key to activate the server; otherwise, you can only evaluate it for some limited time http://www.microsoft.com/windowsserver2008/en/us/how-to-buy.aspxhttp://www.virmansec.com/blogs/skhairuddin

Hi, No, you cannot convert 2008 R2 Evaluation to Full. You have to use the full version disk to reinstall the system. Tim Quan