v1.1.1 - YouTube tutorial link

v1.1.1 — patch

Changed

• Replaced the long "recovery server not contacted" nvram instructions with a link to a YouTube tutorial: https://www.youtube.com/watch?v=w7tHXSohdxU
• Same change applied both in the README and in the in-app log shown after USB creation completes

Everything else from v1.1.0 stays the same.

v1.1.0 - PT/EN, Tahoe, USB boot fix

What's new in v1.1.0

PT/EN Language Support

• Built-in language switcher (dropdown in the top-right of the app)
• Instant switch between Portuguese and English — no restart needed
• Choice is persisted to %LocalAppData%/MacOSHelper/settings.json
• All UI, logs, error messages, and Mac install instructions are translated
• Default language is now English

USB Creation Fixes

• MBR partition type changed from 0xAF (HFS+) to 0xAB (Apple Recovery HD) — fixes Mac boot menu showing "Windows" instead of macOS installer
• Better fallback detection for blkx partitions inside DMG (handles cases where name doesn't contain "HFS"/"APFS")
• Recovery server error guide is now printed in the log after USB creation completes, with the exact nvram command to fix High Sierra HTTPS issues

Catalog

• Updated catalog URL to include macOS 26 Tahoe (also keeps Sequoia, Sonoma, Ventura, Monterey, Big Sur, Catalina, and older)
• Manual gzip decompression for .sucatalog.gz (fixes XML parse error when Apple serves raw gzipped bytes)

Reliability

• SHA1 digest verification of every downloaded package against the catalog's digest
• Failed verifications surface as Status = Failed with a clear error message
• Removed dead code (ProcessRunner.cs) and unused dependencies (WinForms) — slimmer build

Other

• Single-file .exe, self-contained .NET 8 runtime
• Auto-prompts for administrator (UAC) on launch

Install

1. Download MacOSHelper.exe below
2. Double-click to launch (UAC will ask for admin permission)
3. Pick PT or EN in the top-right dropdown

No installation needed — it's a single 36 MB portable executable.