For an explanation on the cause, a simple fix, and how to prevent blue screens with STOP error message 0x00000023, please see my other post based on error 0x00000024. These errors are essentially the same, the only difference being that 24 is the code for NTFS file systems, and 23 is the code for FAT32 file systems.
See more: http://liamcrayden.blogspot.com/2010/06/fix-blue-screen-stop-error-0x00000021.html
