Windows XP carried forward a bug from Windows NT in which Windows will
maintain a "phantom" file open within a directory. This is most notable on
floppy disks.
Things to double check:
You do not have an explorer window open in the directory or a subdirectory
of that directory
You do not have a command prompt open rooted in the directory
How to clear to "phantom" open file
- open a command prompt
- change to the directory (drive) that has the issue
- perform a directory listing - DIR [enter]
- change to a different directory (drive)
- perform a directory listing - DIR [enter]
- this causes the open file table to update (usually)
- in the commond prompt, delete the directory
Best command to zap a directory RD /S <directory>. Use sparingly as
directories and files deleted will not appear in the recycle bin.
For stubborn instances, reboot.
If you just have to know what is causing the issue, you can obtain a utility
to determine open file handles and the files that are open.