Office 2010 key not working?

So...I just installed a new SSD into my laptop, and I'm trying to install Office 2010 professional plus but it wont work.

I lost the disc to Office 2010 PP forever ago, but prior to installing my new drive i used a program to find the product id and product key. So, i went and downloaded a trial version of it, tried to put in the key, but it wont work.

Am i missing something?

Please help.

Thanks!

I didn't find the right solution from the Internet.

References forums.anandtech.com/threads/office-2010-key-not-working.2225838/

Technology Explainer Video