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GetComputerName() returns a null character so it requires and wants to know there is space for it. Without the + 1 in the assignment to Size, a valid name like DESKTOP-0123456 that is exactly MAX_COMPUTERNAME_LENGTH characters in length is returned as an empty string.
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GetComputerName() returns a null character so it requires and wants to know there is space for it. Without the + 1 in the assignment to Size, a valid name like DESKTOP-0123456 that is exactly MAX_COMPUTERNAME_LENGTH characters in length is returned as an empty string.