With Office 2010 Trial Extender, increase your trail use period. Microsoft Office 2010 needs to be activated after 30 days. It can be rearmed 5 times, every rearm gives you additionally 30 days to activate. If you always rearm it on the last day before it has to be activated that makes a total evaluation time of 6 * 30 = 180 days. You can use this tool to rearm Office 2010 5 times. Just re-apply before the 30 days trial expires.