If you extracted the Install macOS High Sierra.app package from your DMG, use the native macOS Terminal tool. Connect your USB flash drive to your Mac.
If you've downloaded the MacOS High Sierra 10.13.1 DMG file, you can install it on your Mac by following these steps:
Please note that macOS High Sierra 10.13.1 is an older version of macOS. Apple has released newer versions, including Mojave, Catalina, and Big Sur. We recommend upgrading to the latest version compatible with your Mac for improved security and features. macos high sierra 10.13.1 dmg
If you can tell me you are trying to install this on, I can help give you specific instructions on how to find the best version of High Sierra for your computer.
The 10.13.1 update aimed to bolster the stability of the new core technologies introduced in 10.13: If you extracted the Install macOS High Sierra
Double-click your downloaded macOS High Sierra 10.13.1 DMG file to mount it.
However, be aware: If you use it online, you are vulnerable to known exploits. Use a robust firewall, modern browser (Firefox ESR or Chromium Legacy), and avoid storing sensitive data. The 10
High Sierra introduced APFS, replacing the aging HFS+ file system. APFS is optimized for Flash/SSD storage, making file copying instantaneous, improving built-in encryption, and protecting data against crashes. The 10.13.1 update stabilized APFS performance on solid-state drives. 3. Critical Security Fixes
To ensure your system's security, you should always attempt to download macOS installers through official channels first. Apple Support Downloads: You can often find direct links to older installers on the Apple Support website App Store:
Turn on the Mac while immediately holding down the key on your keyboard.