If you legitimately need High Sierra:
The phrase "rdr exclusive" is suspicious. In the context of software distribution, "exclusive" usually implies a third-party website or forum has repackaged the operating system. Downloading a macOS image from an "exclusive" third-party source carries significant risks. Unlike the official Apple route, these files are often modified. They may contain injected malware, adware, or ransomware. In the best-case scenario, they are merely unnecessary repackagings of the free software; in the worst case, they compromise the user’s system security. There is no legitimate "exclusive" version of macOS High Sierra; the operating system is the intellectual property of Apple and is freely available through their official channels. download macos high sierra 10135 image file rdr exclusive
Released in 2018, version 10.13.5 was a minor update to High Sierra that focused on stability and introduced Messages in iCloud If you legitimately need High Sierra: The phrase
Full synchronization and storage management for your chats. Unlike the official Apple route, these files are