This article was previously published under Q233020
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After deleting a file, the Explorer shell window does not refresh to remove the file icon. Explorer reports an error that the file is read only.
The file allocation table (FAT) file system failed to notify the shell that the file was removed. There are two separate causes for this problem:
The debug zone for shell notification is turned off. This debug zone controls code flow in the FAT file system, unlike most other debug zones, which only control diagnostic message output. When the debug zone is disabled, the shell notification calls are not made. This is only a problem for debug builds of the operating system.
The volume name returned from DISK_IOCTL_GETNAME is malformed. The return value for the length of the volume name must be one more than the actual length of the disk-name string.