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Introduction

Enabling TRIM after installing an SSD allows for better performance with the SSD in the long run.

  1. Launch Terminal. You can either use Spotlight Search or navigate to "Applications / Utilities" and double click the Terminal icon to launch Terminal. You can either use Spotlight Search or navigate to "Applications / Utilities" and double click the Terminal icon to launch Terminal.
    • Launch Terminal.

    • You can either use Spotlight Search or navigate to "Applications / Utilities" and double click the Terminal icon to launch Terminal.

  2. In the Terminal insert the following command line: sudo trimforce enable
    • In the Terminal insert the following command line:

    • sudo trimforce enable

    • To disable TRIM, the command is as follows : sudo trimforce disable

    • Press the [return] key.

    • Enter your Mac's user password.

    • Your password will not be displayed, but it is there

  3. Press "y" and press the "return" key to accept. Press again "y" and press the "return" key to accept.
    • Press "y" and press the "return" key to accept.

    • Press again "y" and press the "return" key to accept.

    • Warning your computer will restart.

  4. Congratulations! TRIM support is enabled.
    • Congratulations! TRIM support is enabled.

Conclusion

Congratulations you have enabled TRIM support in macOS.

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Anthony Fassler

Member since: 02/26/2015

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