Sophos SafeGuard Disk Encryption 4.60
Windows 2000 Professional SP4, Windows XP SP3
What can be the cause? Can it be prevented?
One possible cause is a policy or registry setting, restricting the remote use of floppies. It can be prevented by changing the registry setting
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\AllocateFloppies to 0.
Alternatively, disable in -> Computer Configuration -> Windows Settings -> Local Policy (or Policies) -> Security Options the device setting "Restrict floppy access to locally logged-on user only".
After the installation of SDE you can change this registry entry back to 1.