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): Type your Apple ID & password, and then click Deauthorize.Select Authorizations from its submenu.Step 2: Sign out of iTunes, iCloud, and iMessage
Please read this page to know how to free up storage on Mac when it’s not enough. Use third-party software: you can also back up a MacBook/MacBook Pro/MacBook Air with third-party programs.Store your files in iCloud: iCloud and iCloud Drive are also used widely to backup important files like documents, photos, music, videos, and contacts.Back up with the built-in Time Machine: you can configure Time Machine to back up all your files automatically.You have two choices: transfer files to another Mac/external hard drive and make a backup of the important files. Please ensure the security of your data on your Mac hard drive. Wipe USB Drives: Erase Your Data Completely & Securely! What to Do Before You Sell, Give away, or Trade in a MacBookīefore talking about how to wipe MacBook (how to wipe a MacBook Pro to sell), I’d like to show users what they should do before erasing the Macintosh HD. 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. What to Do Before You Sell, Give away, or Trade in a MacBook.Please master the methods provided by MiniTool Solution right now. Besides, resetting Mac to factory settings work well in fixing many problems you don’t know how to solve. But when you plan to sell, give away, or trade-in your Mac, you need to wipe it first to avoid data leakage. Data is the most important thing on a hard drive.
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