Microsoft Office 2010 not working?

I've been using it for years on my HP Pavilion DV6-6135DX. About a year or so ago, when I open Microsoft Word or another office program, it comes up with a prompt screen telling me it's not activated and to change the product key, error 0x8007232B.

Well years ago I must have installed Microsoft Office 2010 on to this laptop from a product key I purchased or perhaps the laptop already came with it? I can't remember. But I no longer have that product key anymore if I purchased it so what do I do? It must have started happening when I had someone fix my computer and they completely wiped out everything is my guess. And why does it still allow me to use it though if I just hit close? It's just annoying. It says it's Microsoft Office Standard 2010 if that helps too. My laptop came with Windows 7.

Any idea?

Please help.

Thanks!

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

References h30434.www3.hp.com/t5/Notebook-Software-and-How-To-Questions/Microsoft-Office-2010-not-working-Says-Product-Activation/td-p/6388997

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