So your going to have to give a bit more detail then just 1 of them to try and figure out what they are telling you.
So I looked on my box and I have 253 going back to 5/30
I don't have any of those IDs in mine, but again I am not running 8, but 7 - I can take a look at my windows 8 vm and see if shows any of those.
But again they are INFORMATIONAL logs -- just because you feel there is a lot of them, does not actually mean there is something wrong.
even if there were 10s of thousands of them -- depending on how you are using your machine, and more details of the logs can not tell if normal or abnormal, but again its not an ERROR its information that your system did something - in that case it detached a database -- why it did that, not sure, should it be doing that? Again not sure.. But just because you think there is a lot of them does not mean anything.