Download Macos High Sierra 10135 Image File Rdr Hot

Once you have a legitimate Install macOS High Sierra.app (version 10.13.5):

For USB (real Mac):

sudo /Applications/Install\ macOS\ High\ Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/MyUSB --applicationpath /Applications/Install\ macOS\ High\ Sierra.app --nointeraction

For VirtualBox/VMware (ISO):

hdiutil attach /Applications/Install\ macOS\ High\ Sierra.app/Contents/SharedSupport/InstallESD.dmg
hdiutil convert /Volumes/OS\ X\ Install\ ESD/BaseSystem.dmg -format UDTO -o HighSierra10135.iso
mv HighSierra10135.iso.cdr HighSierra10135.iso

Checksum for clean 10.13.5 InstallESD.dmg (17F77):
MD5: d22b0e8162819e96d3b44712b389f5f6
SHA-1: 92f2c5cf31c2e1c7f57a8b8c6d4b0e3a8f6d9c91 download macos high sierra 10135 image file rdr hot

If your file does not match, delete it immediately. Once you have a legitimate Install macOS High Sierra

If any Mac still has High Sierra 10.13.5 installed natively (un-updated since 2018), you can clone the recovery partition: Checksum for clean 10

No official Apple download exists for 10.13.5 directly because Apple only keeps the latest minor version (10.13.6) on its servers. You must retrieve a 10.13.5 image via third-party archives, but extreme caution is needed.