Convert MS Office Home and Student 2007

[Naom1]

Hi there
I purchased the MS office home and student 2007 from a store and installed it on my computer with no problems including use of the product key. I had previously been running a trial version of the software which I didnt uninstall before installing the proper software, I assumed the new full copy would override the trial. However, when I open the link created from the install, say I open MS word, the page is labelled "Document 1 -Microsoft Word non-commercial use (trial)" and it still tells me im using a trial that will expire soon and I need to upgrade. I clicked "convert" thinking I may just need to re-type my product key, but when I typed it in it said that it was not a valid product key.
Can someone please tell me what I can do to fix it? Or will the trial version disappear when expired and then I can use the proper version?

[Career-Minded]

What version of Office 2007 have purchased? Do you have the disk or installation disk office suite? Test may have preinstalled on the machine appears as office system '2007 'on the list of programs. Uninstall all office tests on the machine than you bought and that should solve the problem. I hope this will help you to solve your issue. If you find any additional answer then share with us. Please try this and let me know it’s working for you or not. Thank you.