MacOS Reset
NVRAM Reset
A macOS NVRAM (non-volatile random-access memory) reset clears specific system settings—such as volume, screen resolution, and startup disk selection—stored by Intel-based Macs to troubleshoot performance, audio, or booting issues. It is a safe, non-destructive procedure, often referred to as a PRAM reset, that restores default settings without deleting user files.
Note: For Apple Silicon (M1/M2/M3) Macs, a simple restart replaces the need for a manual NVRAM reset.
- shut down your Mac
- turn it on and immediately press and hold these four keys together: Option, Command, P, and R.
- release the keys after about 20 seconds, during which your Mac might appear to restart.
SMC Reset
A macOS System Management Controller (SMC) reset restores default settings for power management, fixing hardware issues like loud fans, battery failure to charge, unexpected shutdowns, or unresponsive power buttons on Intel-based Macs. It is a safe, non-destructive troubleshooting step.
Note: Macs with Apple Silicon (M1/M2/M3) do not have a separate SMC and instead reset by restarting.
- Shut down your Mac
- Hold the left Shift+Control+Option keys down, then press and hold the power button down. Keep all four buttons pressed down for ten seconds, then let go.
- Turn on your Mac.
Factory Reset
- Apple menu > System Settings (or System Preferences).
- General > Transfer or Reset > Erase All Content and Settings
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Follow Prompts: Enter your administrator password, follow the on-screen instructions to sign out of Apple ID/Find My, and confirm.
- Restart: The Mac will restart, showing a black screen or progress bar.