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Tune-up a MacOS Device: Difference between revisions
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** NOTE: If you use [https://support.apple.com/en-us/HT204085 iCloud Keychain], any wireless networks you have connected to, ''on any Apple device also connected to iCloud Keychain'', will appear in the list of preferred networks. | ** NOTE: If you use [https://support.apple.com/en-us/HT204085 iCloud Keychain], any wireless networks you have connected to, ''on any Apple device also connected to iCloud Keychain'', will appear in the list of preferred networks. | ||
*[https://support.apple.com/en-us/HT204063 Zap the PRAM] (also called NVRAM) | *[https://support.apple.com/en-us/HT204063 Zap the PRAM] (also called NVRAM) | ||
** For | ** For M version Macs: Shut down the computer. Leave it off for several seconds and the M chip is supposed to detect if there's anything wrong and reset it. Then power it back on. There is no actual keyboard command to reset it anymore. | ||
** Reboot, then hold command-option-P-R until you hear the chime twice | ** Reboot, then hold command-option-P-R until you hear the chime twice | ||
* Boot into [https://support.apple.com/en-us/HT201262 Safe Mode] by holding Shift during the startup chime | * Boot into [https://support.apple.com/en-us/HT201262 Safe Mode] by holding Shift during the startup chime | ||
** This will clear the Mac's cache files; just log in (twice if you have FileVault turned on), and then restart once more | ** This will clear the Mac's cache files; just log in (twice if you have FileVault turned on), and then restart once more | ||
** For | ** For M version Macs: | ||
*** Shut down the laptop | *** Shut down the laptop | ||
*** Power on while HOLDING the power button | *** Power on while HOLDING the power button | ||