Activating the Trial Software Q. I have downloaded the 180-day Windows Server 2003 R2 trial software. How many days do I have to activate the software? What will happen if I don't activate it? A. After you install the trial software, you have 14 days to activate the product. If you do not activate the product within 14 days of installation, you will not be able to continue your evaluation until you activate it. None of your data will be lost.