Hi, Welcome to JustAnswer. This is Mahbub Shahin can assist you.
Microsoft Office Standard 2007 came preinstalled by Acer on my laptop, but for some reason I cannot find the Product Activation Key to use the product. Does AScer have a record of this number that I can secure?
When you purchased the laptop did you purchased Microsoft Office?
It was preloaded at the time of purchase.
Maximum time the preloaded version came with free/trail license key or starter version. After 1-3 month they need to activated.
Did you use it before?
At first We have to find its key was it free or genuine?
Purchased at Best Buy so I assume it was genuine
Download and install the Belarc program on the computer that has the office working:http://www.belarc.com/free_download.html
Then you will get a profile page, then scroll down near the middle of the page to get the product key.