I discovered the issue seems to be my 13 in 1 media card reader. For whatever reason, I get an icon everytime I start my pc in the task bar. This icon prompts me to release or stop a USB device. The strange thing is I don't have anything in the USB drive or the 13 in 1 card reader but that icon is always there at startup (as if I didn't do a proper release of a device - which of course I always do!)
So that is the issue that seems to cause this "cosmetic" error message in my event viewer on Vista. I am just curious though, can I stop this icon from loading in the task bar everytime I startup the pc? If so, would I do so through msconfig? Where would I go from there?
On the other hand, should I just leave everything alone and forget about it? Thanks for any follow-up suggestions. This error is not really a big deal I just got sick of seeing #4621 every time that I've pulled the event viewer.