Just recently when connecting Windows 7 clients to a new SBS 2011 installation we have experienced several clients that refused to sync using the Sync Centre. We get the message that ‘Offline Files is enabled but not active, please restart to activate’. Restarting does not active Offline Files.
After trying many different techniques to enable this feature under these circumstances we came across the following post by IVAN VERSLUIS / MARCH 22, 2011 on the Networknet Blog http://www.networknet.nl/apps/wp/archives/1093
This blog entry offers several methods to activate the Offline Files feature.
NOTE: Please read the blog carefully as incorrect use of this method could lead to loss of data permanently.