explorer.exe error

This is my first time posting and also joining this site lol I was wondering if anyone could help me figure out why i get an explorer.exe application error when i boot my computer? I tried finding the same problem elsewhere but did not have any luck. It said the explorer application at "0x015b39ee" at the extension (I think that is what it said) "0x00000000" could not be "written." It isn't really casuing any problems with anything but unless I click OK on that menu box I can't access anything else. I would like to provide more information about the error but it doesn't really give me much specifics to type. I would greatly appreciate any help!! Thanks!! :slurp: