...as it appears like you've got enough...But if you'd like to give the registry cleanup a shot, here's how:
IF YOU HAVE NEVER DONE THIS BEFORE, BE CAREFUL. First, make a backup of the Registry. Click on Start-Run. When the box opens type in "Regedit" (without the quotes). Click Ok. When the Registry Editor window opens, click on the "My Computer" listing to highlight it, then click on "File" in the upper left corner of the window, choose "Export". When the next window opens, be sure of the location where you are saving it to and give the file a name like Backup. Click "Save". You now have a backup registry that can be double clicked and will replace the new one you?re going to make, IF you make any deletions you don't like.
You now might want to do a "dry run" using the instructions below, without deleting anything, just to make sure you've got it right.
Now according to the DSLReports article, click on "Edit", choose "Find" from the menu. In the "Find" window, place CHECK marks in the "keys" and "match whole string only" boxes. UNCHECK the boxes next to "Values" and "Data". Now type: "MSN6" (without the quotes) in the "Find What" line. Now click on the "Find Next" button. The registry search will begin.
If a folder/key is found which contains the "MSN6" title, then search will stop with the folder/key highlighted on the left side of the screen. Press the the "Delete" key, and choose "Yes" when it asks: "Are you sure?". In order to proceed on with the search, press the F3 key at the top of the keyboard. Repeat the process until all "MSN6" keys are deleted, then close the Registry Editor by clicking on the X in the upper right corner of the window. Restart the computer.
Hope this helps.
Grif