1401 Mac 1.0.16 - preserve existing boot files

1401 for Mac 1.0.16 repairs a boot-file preservation defect in USB-to-internal OpenCore promotion. Earlier versions could replace the destination EFI tree and remove active Windows or vendor boot files; a backup did not keep those paths active.

Automatic copying onto another EFI partition is now disabled. Driver installation continues on the verified or explicitly selected startup OpenCore partition. If the machine starts from a USB stick, keep it attached for every restart until the internal boot setup is separately reviewed. This update does not restore boot files already removed by an earlier installation.

The expanded hardware logs, explicit log-submission consent and installer checks from 1.0.15 remain. Optional DTrace capture remains unavailable. The obsolete Tahoe preparation action is removed.

Validation: eight production-segment no-write cases, three startup-partition ownership cases, six runtime compatibility cases and twenty removal cases pass. The companion builds for x86_64/macOS 15.0 and passes strict bundle and individual executable signatures. Final ZIP and read-only DMG contents match the built app.

Driver helper package 1.0.10 is unchanged, including all 47 protected GPU/kernel/compiler/firmware/removal files and both runtime links. Its NVIDIA runtime requires macOS 15.5 or later. Version 1.1 remains held for unresolved application graphics, protected playback and per-card qualification. No full RTX 5090 or macOS 26 support is claimed.