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It is necessary to disable OSX's System Integrity Protection so you can modify the Bootcamp Utility in the next step. This reduces the attack surface for malware that relies on modifying system files by preventing any user, whether with system administrator ("root") privileges or not from modifying a number of operating system directories and files. Step 1: Disable El Capitan's System Integrity ProtectionĮl Capitan ships with a new OS X feature: System Integrity Protection (SIP), also known as "rootless" mode.
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IMPORTANT: Unplug all external and physical hard drives (where possible) that you won't be installing to to avoid accidentally erasing them.
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it is possible to install Windows 10 on earlier iMacs and it seems to run quite well. How to Install / Bootcamp Windows 10 on a mid-2011 iMac using USBĪpple has released support for bootcamping Windows 10, but only on 2012 Macs and later.
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