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What is “Protected mode”?

April 26, 2017protected mode

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What is “Protected mode”?

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“Protected mode” is for computer users and public access. In this mode, whatever changes made (editing/deleting/moving/renaming files, installing /upgrading/ removing software, etc.) are temporary and when rebooted, everything returns back to the original setup.

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Protected mode (really Protected Virtual Mode) is Intel’s name for the native operating mode of 286, 386, 486, Pentium and later CPU chips. The two main characteristics of Protected mode are 1) a much larger address space (many megabytes) and 2) a much greater level of hardware protection. Except for a slight change in addressing, protected mode uses exactly the same machine instructions as real mode. Linux, FreeBSD, OS/2, and Windows (95,98,ME,NT,2000,XP) all run in protected mode. Your DOS program can as well, if you use DOS/4G(W).