This is not an error; it is a limitation of the Unidesk filter driver.  We refuse to allow you to rename a directory that was originally provided through an OS or App layer. A directory which exists entirely in the User Layer -- one that was created in the desktop -- can be renamed at any time.  However, a directory that is part of an OS or App layer can only be deleted. It cannot be renamed.  If you want to achieve the same effect, you would create the new directory, copy the files into it, and delete the old directory.  This will pull all of the files in the new directory into your User Layer.

(Note, moving something to the Recycle Bin also counts as a rename, so you can see this error if you try to drag a layer folder to the trash. You will also get an error in Explorer.)

The Event above is what we record in the System event log on the Unidesk desktop machine when we refuse a rename. We also log the event in C:\Program Files\Unidesk\Uniservice\Log\Log0.txt so you can see what the directory was.

[10/23/2013][21:58:30:068] Error Detail Data Length 4 Path \Device\HarddiskVolume2\Windows\assembly\NativeImages_v4.0.30319_32\mscorlib\3f95a6d480ed1ebe45cf27b770ba94ed Offset 0xfffeb960 Rename of a directory denied Status 0xc0000022

This log message is not a problem by itself. We refuse the directory rename in a clear and unambiguous way. If this is a problem for a piece of software, it should also report its own error about it. For instance, Sophos updates get an error if you don't follow our Sophos guide carefully, and it's because they want to rename directories like this. If you are not seeing a different error at the user level, then this message can be ignored.

The fact that we refuse to rename a layer-provided directory also means that you cannot delete a directory that is provided by a layer by dragging it into the Recycle Bin. Although you can absolutely delete individual files and directories provided by a layer, dragging it into the Recycle Bin constitutes a rename of the directory, which just errors out.

To delete a directory provided by a layer, you can use shift-Delete from the Explorer window to delete it outright, or use a CMD prompt and "del /S whatever" to recursively delete the contents and the directory itself.