What does Windows error code 8529 (ERROR_DS_SAM_NEED_BOOTKEY_PASSWORD) mean?

 
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ERROR_DS_WRONG_LINKED_ATT_SYNTAX ERROR_DS_SAM_NEED_BOOTKEY_FLOPPY

ERROR_DS_SAM_NEED_BOOTKEY_PASSWORD

Security Account Manager needs to get the boot password.

ERROR_DS_SAM_NEED_BOOTKEY_PASSWORD is Win32 error 8529 (0x00002151) and concerns Security Account Manager startup requiring a boot-key password.

What to verify

Verify whether the supported boot-key material can be supplied and validated before SAM exposes account data. Check SAM and System event logs, configured boot-key mode, and startup/recovery environment.

Likely causes

  • legacy SysKey configuration expects a startup password.
  • the stored boot-key mode requires interactive input.
  • startup occurs outside the normal protected path.
  • boot-key configuration is incomplete or damaged.

Troubleshooting steps

  1. Collect SAM and System event logs.
  2. Record configured boot-key mode.

Handling, retry, and recovery

Use the documented recovery process and authorized boot-key material; do not bypass SAM protection or repeatedly guess credentials.

Related errors

ERROR_DS_SAM_NEED_BOOTKEY_FLOPPY expects removable boot-key media rather than a typed password

Example

A restored legacy system uses startup-password SysKey mode. Recovery personnel provide the escrowed password through the supported startup path and then migrate away from the obsolete configuration.

References


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