A better hypothesis
I appreciate that a lot of people like to help others who are stumped. Frequently we solve problems by trying many of the proposed solutions and sometimes get it right. I like the idea that most of these proposed solutions start with "Have your tried...". It would be nice if there were a radio button one could post on the reply with values of
1) I know exactly what this is and how to resolve it
2) I had the same or similar problem and solved it like this
3) Here's something else you could try
4) I really don't have a clue what I'm talking about but maybe this is it
The "randomly" numbered directories are the results of program install, uninstall and update activity. Fortunately a lot more programmers are cleaning up after themselves instead of leaving files all over your drive. Unfortunately there is no programmer yet than can predict how his install, update or uninstall is going to perform in every circumstance. That's when they don't take out the trash.
I have never had a problem removing these.
Here is my final solution for everything:
1) Create a restore point
2) Play/Work with all the creativity and intuition you can muster
3) If you experience that "oops" sensation, restore back to the point you created.