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Warning: Resetting the PRAM/NVRAM will cause the Mac to lose operating system settings such as Time and Volume settings.

Note: Used successfully to fix Touchpad not “clicking” issue on a Macbook Pro

  1. Make sure the Mac is turned off
  2. Press Command+Option+P+R and hold down the keys
  3. Press the Power Button on the Mac (while still pressing the keys down)
  4. The Mac will then flash and restart, release the keys once you have reached the second start-up noise.
  5. You have now reset the settings and your Mac should continue booting.



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