Since Rsync works on top of the Cygwin Unix emulation layer, it doesn't know anything about Windows file attributes (e.g. read only, hidden, system, etc) or about NTFS security attributes (i.e. access control lists) so it is not able to transfer any of these to the backup.

NTFS alternate data streams are not supported either. Also, Unix doesn't have a concept of file creation time, so that is not preserved either. The only attribute that is preserved is the last modified time of the file.

Please find a comparison between the File Replication engine and the Rsync engine in regards to file attribute preservation

File attributes at destination	Rsync	File Replication
Windows File Attributes	No	Yes
Creation time	No	Yes
Last access time	No	No
Last modified time	Yes	Yes
NTFS security (ACLs)	No	Yes*
NTFS alternate data streams (ADSs)	No	Yes*

* The ACLs and ADSs are preserved if destination is NTFS (not Linux or ReV drives)