If your Mac is too new or too old to access the App Store link, you may look for third-party hosting sites like the Internet Archive or dedicated tech blogs.
To ensure security and system stability, always obtain operating system files through official Apple channels. Method A: Download via the Mac App Store macos high sierra download dmg install
This will automatically redirect and open the directly to the High Sierra download page. If your Mac is too new or too
Connect a USB flash drive (minimum capacity) to your Mac. Open Disk Utility , select your USB drive, and click Erase . select your USB drive