Fix Windows Black Blob in the Clipboard

BLACK BLOB SOLUTION (Word, Excel, PowerPoint)

For many users with this black blob/dot issue, the problem is caused by a defective Bluetooth add-in for Word, Excel, and PowerPoint.

Black Blob Word 2007 FIX (Similar process for Excel and PowerPoint, just use excel.exe, and powerpnt.exe instead of 'Winword' in the following)
Click Start button --> Type Winword into the search box
Right click on Winword --> Run as administrator --> Click yes
Click the Microsoft Office Button at the Top Left
Click 'Word options' at the bottom
Click the 'Add-ins' Tab
Dropdown box at the bottom --> Manage: "COM Add-ins"
Click Go...
Uncheck "Send to Bluetooth"
Press OK

Additional Notes:
The defective Bluetooth add-in is usually installed by a Bluetooth driver. (In my case - Intel Centrino Wireless Bluetooth 3.0 + High Speed Adaptor (v1.1))
Updating your Bluetooth driver (or reverting to an older version) may also resolve the problem.
Unfortunately simply disabling the add-in through the Word options may result in a 3 second freeze when loading Word 2007. (If this is a problem, changing to a different bluetooth driver version may be the better option)