Please run this utility https://go.microsoft.com/fwlink/?linkid=52012, then click the Copy button, then come back here, Reply to this post, and then Paste the report into that post.

First, use a product key finding utility to gather up the product key that was used for the current installation of Office 2007 Enterprise.  One such utility is called the Magical Jellybean Keyfinder:  https://www.magicaljellybean.com/keyfinder/

Then report this product key to your tech support people–they will compare to ensure that their product key was used to do the installation.

Office 2007 Pro Plus is quite often sold on internet auction sites masquerading as a retail license and packaging for Office 2007 Pro.

If possible, return the software to your seller and get your money back.  If that does not work out, please view the Ogffice Genuine Offer FAQ https://www.microsoft.com/genuine/downloads/FAQ.aspx?displaylang=en#ID0EKNAC to see if you qualify for discounted or complimentary replacement of your counterfeit Office.

If you still have trouble you can try this:

Disable OGA Notification – Hack 2

This hack will completely remove OGAAddin.connect registry key from system registry

The OGA notifications will be automatically removed. However the system might ask you to install this update using Windows Live Update again.

1. Go to Start >> Run >> Type regedit in the box and hit Enter
2. Navigate to the following key paths and remove these registry keys completely from your system. You might find any other key which contains OGAAddin.connect registry value, remember to remove all of them.

HKEY_LOCAL_MACHINESOFTWAREMicrosoftOfficeWordAddins
HKEY_LOCAL_MACHINESOFTWAREMicrosoftOfficeExcelAddins
HKEY_LOCAL_MACHINESOFTWAREMicrosoftOfficePowerpointAddins
HKEY_LOCAL_MACHINESOFTWAREMicrosoftOfficeOutlookAddins

3. Delete the OGAAddin.connect registry value from above paths
4. You are done.