Tips - File .ost not Backup up

Backup program usually don't backup Outlook .ost files.

If you would like to bypass this problem you shold make the following registry modify:

HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\BackupRestore\FilesNotToSnapshot

  1. Look for "OutlookOST" key 
  2. Delete it.
  3. Restart Backup program
[original Post http://www.achab.it/blog/index.cfm/2013/9/quando-il-backup-del-pc-non-fa-il-backup-di-outlook.htm]