Unable to get my Office Trial to work

[Rob]

Having just downloaded the Office Home and Student Trial I cannot get it to
work. After typing in the product key and installing it, when I open up Word
for example, it tells me that the trial has expired. I have tried
re-activating it using -Word Options-Resources-Activate but when I do this I
get the same message telling me the trial has expired. I have never had this
problem before when downloading a trial. Can anybody help?

 

[Bob I]

Perhaps the previously installed Office 2007 trial has expired? If so,
you can't put on another and start again.