The thumbs.db is a system file that usually cannot be deleted because it is usually assigned a file handle.
migRaven.24 / 7 DataRetention deletes all directories if they are empty. But if this file cannot be deleted, then migRaven also do not delete the directory.
The two ways to delete the Thumbs.db
- Restart the file server. After that, the file can usually be deleted if a client has not blocked the file again in the meantime.
- A GPO can be used to convince Windows not to use these files anymore. The following settings must be made for this:
The file has been obsolete since Windows Vista.