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#How to reset a macbook g4 how to#
How to reset NVRAM/PRAM using startup command: This RAM type will keep data for users after their devices are powered off. The NVRAM, formerly known as PRAM, refers to a small amount of special memory on Mac. If you're using macOS Mojave or earlier, please go to the Apple logo menu -> System Preferences -> iCloud -> Sign Out. Sign out of iCloud (macOS Catalina or later):
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What should you do? Do you need to take out the disk drive and ruin it? How to wipe a MacBook completely? All of these questions will be answered later. However, you need to remove the data completely when you plan to change a hard drive, sell/trade in the old Mac, or give away your MacBook to others. In general, you need to protect hard drive data well to prevent personal data loss/leakage.
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What to Do Before You Sell, Give away, or Trade in a MacBook.