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MacBook 3rd Party SSD Trim Enable - macOS Sierra

Before Yosemite, I was using a 3rd party app called Trim Enabler to turn on the TRIM command for SSD installed as an upgrade to HDD-based Mac. This is useful to prolong the life of older Macbooks. Yosemite new security model will no longer load the driver. The developer has released a new tool called Disk Sensei (https://www.cindori.org/safely-enable-trim-on-yosemite-and-el-capitan/). The new tool has more bells and whistles and doubled the price (US$19.99). Ouch!

With the new version of Mac OS, a new, built-in solution is available. It's free.

Under Mac OS X 10.10.4 or above, perform the following steps:

1) Launch Terminal
2) sudo trimforce enable
3) Confirm "yes" two times - Macbook will then reboot

It is verified OS X El Capitan works with this function.

2016.10.07 - It is verified also that macOS Sierra final also works!

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