Differences between Pre-Boot Authentication (PBA) activated and deactivated

  • Article ID: 107061
  • Updated: 29 Apr 2010

SafeGuard Easy multi-platform 4.5x

Client OS

Windows 2000 Professional, Windows XP

Server OS



What is the difference if the PBA is turned on or off


The main difference is the method of authentication. If the PBA option is set to "off", an "*AUTOUSER" with a random password is created automatically.
This random password is split into different parts and stored in the SafeGuard Easy kernel. During the boot sequence SafeGuard Easy recovers the stored parts to reproduce the password.

Nevertheless, the encryption process is the same whether the "Password at system start"-option is set to "on" or "off". The key management is also absolutely identical.

Related articles: 110282 - Sophos SafeGuard Power-on Authentication (Pre-boot Authentication) Whitepaper

keywords: sge autouser

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