This is your system telling you that a driver has been modified, and is not allowed to load. If you try to boot a Trim-enabled system with the kext-signing setting re-activated, you will be met by a gray screen with a stop sign: This memory can be reset either by accident or by intention (usually by troubleshooting issues with your hardware), causing kext-signing setting to re-activate. The kext-signing setting is stored in your Mac’s NVRAM/PRAM, a sort of flash memory inside your Mac. When you flip the switch back to Off, Trim Enabler will ask you if you want to restore the kext-signing setting back to normal. You can then flip the switch again to enable Trim. Trim Enabler 3.3 will disable the kext-signing setting automatically for you, by giving a choice when you flip the switch.īy clicking Proceed, your computer will reboot with kext-signing disabled.
HIGH SIERRA TRIM ENABLER INSTALL
It is important to note that the kext-signing setting is global, if you disable it you should be careful to only install system drivers from sources that you trust. To continue to use Trim Enabler and continue to get Trim for your third party SSD, you first need to disable the kext signing security setting.
Since Trim Enabler works by unlocking the Trim driver for 3rd party SSD’s, this security setting prevents Trim Enabler to enable Trim on Yosemite. This is a means of enforcing security, but also a way for Apple to control what hardware that third party developers can release OS X support for. If they have been modified, Yosemite will no longer load the driver. Kext signing basically works by checking if all the drivers in the system are unaltered by a third party, or approved by Apple.
HIGH SIERRA TRIM ENABLER MAC OS
(A kext is a kernel extension, or a driver, in Mac OS X) In OS X 10.10 (Yosemite), Apple has introduced a new security requirement called kext signing. Make sure to read this before using Trim Enabler on OS X Yosemite Just came across this bit of information and thought it was interesting.Will this affect us?įAQ and support for using Trim Enabler in OS X Yosemite Building a CustoMac Hackintosh: Buyer's Guide
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