Hello is there a way in which the archive folders of all users is automatically created and stored on a network folder since when a user needs OS re-installation all archived e-mails will be lost if not backed up

Outlook .PST files on a network share are neither recommended nor supported. Your best bet is to use a backup solution for the .PST files or an an archive. The Personal Archie in Exchange 2010 works nicely. GFI MailArchiver is the one low-cost product I know (and very good), but there are several other products around. EdgeSafe PST2PST Backup - Enterprise PST backup solution http://www.datamills.com/ GFI MailArchiver http://www.gfi.com/mailarchiver Network Stored PST files ... don't do it! http://blogs.technet.com/b/askperf/archive/2007/01/21/network-stored-pst-files-don-t-do-it.aspx Personal folder files are unsupported over a LAN or over a WAN link http://support.microsoft.com/kb/297019MCTS: Messaging | MCSE: S+M | Small Business Specialist