Office 2010 needs to be reactivated?

That makes no sense. Only one of the PCs has the problem and only Word shows the issue. How can only one portion of the program show as pirated?

 

You finally got caught to put it nicely.

 

Had a similar problem with Microsoft Office Professional 2007. I purchased it on our Trademe and it was sealed in a Microsoft folder and looked the real deal.
The hologram has all the MS codings but when I went to reinstall it to the wife's comp - it wouldn't activate. I had installed it without trouble previously.
I contacted MS and found it had been activated 23 times according to MS. NOT by me!
I still have the disc if any one wants it.

 

I had the same problem when I used an llegal key.
It was just for testing so I though may be I will use just a hacked key to try and see that new Office and so I did.
Then I bough a new licence.
So what I recomand is to contact support, may be your key is now in the black list.