Sophos SafeGuard Disk Encryption 4.60
Windows 2000 Professional SP4, Windows XP SP3
What could cause the encryption to take many hours?
Bad performance of the encryption of the hard disk has been observed (e.g. 15h for 35GB!).
Please check the status of the hard disk interface mode. This behaviour might occur, if the hard disk is not running in UDMA Mode but in PIO Mode.
For further information about these two modes refer to the knowledge database of Microsoft or the manufacturer of your hard disk.