SDE109: Invalid backup file

  • Article ID: 109099
  • Updated: 30 Sep 2010

Sophos SafeGuard Disk Encryption 4.60

Client OS

Windows 2000 Professional SP4, Windows XP SP3

Server OS



What can cause the errormessage "SDE109: Invalid backup file" during a kernel restore action?


A reason for SDE109 could be

- a backup from an already defective kernel was stored to the disk and can not be restored afterwards
- the backup file got corrupted somehow

Keywords: SDE109 SDE 109 csv sde Sophos SafeGuard Disk Encryption

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