FATAL ERROR: EE0C0001 INVALID BOOT SECTOR SIGNATURE (reported before preboot authentication)
Last Modified: 2023-04-28 12:40:23 Etc/GMT
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FATAL ERROR: EE0C0001 INVALID BOOT SECTOR SIGNATURE (reported before preboot authentication)
Technical Articles ID:
KB72724
Last Modified: 2023-04-28 12:40:23 Etc/GMT Environment
Drive Encryption (DE) 7.x DE For details of DE 7.1.x supported environments, see KB79422 - Supported platforms for Drive Encryption 7.x. ProblemUnable to authenticate at preboot.
The following error is reported during a system startup and before the preboot authentication screen is displayed: NOTE: The part of the error that's not in bold might vary slightly. CauseThe Endpoint Encryption Master Boot Record (MBR) has been overwritten or changed, which is often caused by an MBR Virus (for example: rootkits, bootloaders). SolutionTo detect, clean, and prevent subsequent infections, perform a recovery and update your anti-virus software:
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