to format your USB for Mac and then "Restore with Disk Image" using your DMG file. Alternative BalenaEtcher if the DMG is formatted as a bootable ISO/IMG hybrid. Microsoft Community Hub How to Create macOS High Sierra Bootable USB for Reinstall
The 10.13.1 update followed the initial release of High Sierra to address critical bugs and introduce new features, such as: Over 70 new emoji characters. Security Fixes: It resolved the KRACK Wi-Fi vulnerability. macos high sierra 10131 dmg
Always use Time Machine before performing a system update or clean install. MacOS High Sierra 10