FIELD: information technologies.
SUBSTANCE: method for protected booting of computer operating system with integrity check includes stages of operating system boot loader start-up, reading coding key, checking integrity of operating system and booting of operating system. Boot loader is previously recorded on external media. All sectors of computer hard disk are coded at initial stage of booting. Prior to operating system integrity check, coding key required for this check and further booting is read. Coding key is previously saved in protected memory of external media. User authentication is required for access to external device memory.
EFFECT: improved extent of computer protection against unauthorised access to information stored on hard disk.
8 cl
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