Requirements and limitations
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•A minimum of 512 MB of RAM
•The product allows to view/change some properties (Administrator account, Account is locked/disabled, Password expired, Password never expires) for local user accounts only, but not for AD accounts
•Some computers may require 3rd party mass-storage drivers (RAID, SCSI, SerialATA etc). You can load additional drivers right when ESR is already booted (from CD, USB flash drive or floppy disk) or use one that comes with the program
•When you boot from the CD, you cannot save password hashes back to the disk, but only to the hard drive.
There are also some special requirements for booting the computer from UFD (USB Flash Drive), as defined by Microsoft for Windows PE:
•The size of the UFD cannot be smaller than 256 megabytes.
•The size of the UFD cannot be larger than 32 GB.
•The UFD must report a drive type of Removeable, not Fixed.
•The UFD must be first in the list of boot devices in the computer BIOS.
•The computer BIOS must support the extended INT 13h (xINT13) BIOS interrupt for UFDs.
•The computer BIOS must support booting from UFDs.
•The computer's USB controller must support bulk-only transport (BOT).
ESR has been designed for maximum compatibility and should be able to boot even from external hard disk (USB or FireWire) including ones that are larger than 32 GB, but some restrictions still apply.
Please note that after you reset the password, you may lose access to the user's: web page credentials, file share credentials, DPAPI encrypted stuff, EFS-encrypted files and certificates with private keys (signed/encrypted e-mail). For more information, please look at Microsoft Knowledgebase article: KB290260.