Microsoft does not allow OGA Notifications (KB949810) to be uninstalled, but that does not mean the individual file components of OGA Notifications cannot be deleted, or removed manually. This is a Guide to help one do just that!

To disable OGA Notifications, and sending of information to Microsoft manually do the following:

Close and exit ALL Office applications (examples: Access, Word, Excel, PowerPoint, Outlook, Publisher, Visio, OneNote).

(NOTE: %SystemDrive% typically represents C: on most systems / computers - It is the drive Windows Boots / Loads from)

Search in the following directories / Folders:

%SystemDrive%\Wndows\System32 folder (for 32 bit Windows Operating Systems)

OR

%SystemDrive%\Windows\SysWow64 folder (for 64-bit Windows Operating Systems)

for any of the following files:

OGAAddin.dll
OGACheckControl.dll
OGAEXEC.exe
OGAVerify.exe

Delete any of the above files when found.
Note: You may need to turn off "User Account Control", and / or be logged on as an Administrator in order to delete these files.

Next (In order to Prevent the Computer from Re-Installing OGA when Windows Automatically checks for Updates):

Click "Start"
Click "RUN"
Type regedit in the box, and press "Enter".
In the Registry Editor application click the "Edit" dropdown.
On the "Edit" dropdown click "Find".
Type, or copy and paste:
OGAAddin.connect
into the "Find What:" Box.
Look for LoadBehavior in the results (in the Right Panel).
When you find LoadBehavior, Right Click on it and Left Click "Modify"
change the value from 3 to 0 and click "OK".
press your "F3" Key to find the next set of result with the find feature.
Look for LoadBehavior in the results, again.
As before, When you find LoadBehavior, Right Click on it and Left Click "Modify"
change the value from 3 to 0 and click "OK".
Repeat the process pressing F3, looking for LoadBehavior, and modifying it's value from 3 to 0 until pressing "F3" yields the "Finished Searching Registry" Message.
When you get the "Finished searching through the registry" Message, close the Registry Editor, you are done!
You should not see a nag message, or have OGA send information to Microsoft every time you log on to your computer, and OGA should never re-install its self during the Windows Automatic Update Process.

Doing this requires editing the registry on your computer.
If you are not comfortable doing this you may want to live with OGA.
Warning! - You edit your computers registry and files at your own risk, we will not be responsible for any editing you perform!!!