Boot Camp Support Software 4.0.4255 Guide

If you search Apple’s support site today, you will find Boot Camp Support Software version 5.x, 6.x, or even “AutoUnzip” packages. So why would anyone hunt for version 4.0.4255?

| | Recommended Boot Camp Version | Why 4.0.4255 Matters | | :--- | :--- | :--- | | Late 2012 – Late 2015 (MacBook Pro 10,1 to 11,5; Mac Pro 6,1; iMac 14,x-15,x) | 4.x series (specifically 4.0.4033, 4.0.4255, 4.0.4326) | Newer versions (6.x) often break audio, Wi-Fi, or brightness control on these older machines. | | 2016 and newer (T2 chip models) | 5.x or 6.x | Cannot install 4.0.4255; will fail due to missing T2 security drivers. | boot camp support software 4.0.4255

Grab the .zip file and extract it. You should see a BootCamp folder. If you search Apple’s support site today, you