[Advanced Tip]: How to put your Mac in 64-Bit only mode
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Last week, I went over how to check if your apps are either 32 bit or 64 bit to ensure that they will work if (when) Apple decides to cut off support for 32 bit apps.
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Now, with this tip, you can make the Mac discard all 32 bit apps and just run apps that are 64 bit. This tip involves using the Terminal and should only be done by advanced users.
If you want to try it, here’s how:
1. Go to Finder > Applications > Utilities > Terminal.
2. Type in the following: sudo nvram boot-args=”-no32exec”
3. Press [Return].
4. Close Terminal and reboot the computer.
From then on, when trying to run a 32 bit apps will come up, a window will come up warning to get a 64 bit version of the app.
If you wish to go back to the default setting, do the following:
1. Go to Finder > Applications > Utilities > Terminal.
2. Type the following: sudo nvram boot-args=””
3. Press [Return].
4. Close the Terminal and reboot the computer.
You will be able to run both 32 bit and 64 bit apps once again.
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