{"id":1185,"date":"2026-03-13T13:10:55","date_gmt":"2026-03-13T12:10:55","guid":{"rendered":"https:\/\/mag.certideal.com\/?p=1185"},"modified":"2026-03-13T14:33:17","modified_gmt":"2026-03-13T13:33:17","slug":"format-mac-the-guide-that-avoids-loosing-time","status":"publish","type":"post","link":"https:\/\/mag.certideal.com\/en\/format-mac-the-guide-that-avoids-loosing-time\/","title":{"rendered":"Format Mac: the guide that avoids loosing time"},"content":{"rendered":"\n<p>There are two kinds of \u201c<strong>formatting<\/strong>\u201d on a Mac. The one you do because you want to <strong>sell<\/strong> the machine and sleep easy. And the one you launch because the Mac starts acting weird (crashes, slowdowns, strange bugs) and you want to go back to a clean base.<\/p>\n\n\n\n<p>In both cases, the word \u201cformat\u201d can feel a bit scary, because it actually bundles several actions: <strong>making a backup<\/strong>, <strong>erasing<\/strong>, <strong>reinstalling macOS<\/strong>, and then, if needed, <strong>restoring<\/strong> your data. The good news: in 2026 Apple has made this much simpler on most recent Macs, especially with macOS Tahoe (version 26), which keeps \u201cindustrializing\u201d reset and restore workflows.<\/p>\n\n\n\n<p>Let\u2019s do it properly, without pointless jargon\u2014and, most importantly, without traps.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>What \u201cformatting\u201d really means on a Mac (and why it\u2019s not just a button)<\/strong><\/h2>\n\n\n\n<p>When we say \u201cformat a Mac\u201d, we usually mean:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Erasing the disk\u2019s contents<\/strong> (files, accounts, settings, apps)<\/li>\n\n\n\n<li><strong>Recreating the disk structure<\/strong> (often APFS today)<\/li>\n\n\n\n<li><strong>Reinstalling macOS<\/strong><\/li>\n\n\n\n<li>Putting the Mac back into a \u201clike-new\u201d state, ready to be set up (or to start from a clean install)<\/li>\n<\/ul>\n\n\n\n<p>Important point: <strong>reinstalling macOS without erasing<\/strong> isn\u2019t a real format. It can fix a shaky system, but it won\u2019t necessarily remove your data or accounts.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Before touching the drive: a quick checklist (the part that saves weekends)<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>1) Make a backup (otherwise it\u2019s extreme sports)<\/strong><\/h3>\n\n\n\n<p>If you care about your data: Time Machine, cloud backup, a manual copy to an external drive\u2026 any method works, but you need one.<\/p>\n\n\n\n<p>Real-life tip: remember to export anything that syncs poorly\u2014or doesn\u2019t sync at all. Typically:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Photos libraries (if you don\u2019t use iCloud Photos)<\/li>\n\n\n\n<li>Final Cut \/ Logic projects<\/li>\n\n\n\n<li>odd local folders (Downloads, archives, random stuff)<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>2) Check whether Find My \/ Activation Lock is enabled<\/strong><\/h3>\n\n\n\n<p>If you\u2019re selling or giving the Mac away, avoid leaving an Activation Lock that would block the next owner. Apple groups this inside the \u201cbefore you transfer your Mac\u201d process.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>3) Write down important credentials<\/strong><\/h3>\n\n\n\n<p>Especially if you use FileVault, multiple admin accounts, or software with picky licenses.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Identify your Mac: Apple silicon, Intel, T2 chip\u2026 it changes the method<\/strong><\/h2>\n\n\n\n<p>Why am I annoying you with this? Because the simplest option\u2014<strong>Erase all content and settings<\/strong>\u2014isn\u2019t available everywhere.<\/p>\n\n\n\n<p>Apple says this option exists on <strong>macOS Monterey (12) or later<\/strong>, and only on a <strong>Mac with Apple silicon<\/strong> or an <strong>Intel Mac with the T2 security chip<\/strong>.<\/p>\n\n\n\n<p>So, basically:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Recent Mac (Apple silicon or Intel + T2)<\/strong>: you get the \u201cmagic button\u201d (almost).<\/li>\n\n\n\n<li><strong>Older Intel Mac (no T2)<\/strong>: you\u2019ll use macOS Recovery + Disk Utility.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Method 1: \u201cErase all content and settings\u201d (the fast lane)<\/strong><\/h2>\n\n\n\n<p>This is the method I recommend whenever your Mac supports it, because it\u2019s <strong>quick<\/strong>, <strong>guided<\/strong>, and it properly handles erasing accounts, settings, user volumes, and more.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Where to find it on recent macOS (Ventura\/Sonoma\/Tahoe and friends)<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Open <strong>System Settings<\/strong><\/li>\n\n\n\n<li>Go to <strong>General<\/strong><\/li>\n\n\n\n<li>Then <strong>Transfer or Reset<\/strong><\/li>\n\n\n\n<li>Choose <strong>Erase all content and settings<\/strong> (Erase Assistant)<\/li>\n<\/ul>\n\n\n\n<p>From there macOS walks you through it: you confirm, authenticate, and it resets the Mac to a state that\u2019s ready for a fresh setup.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>When it\u2019s perfect<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>You\u2019re selling \/ giving away the Mac<\/li>\n\n\n\n<li>You want a clean start without fighting partitions<\/li>\n\n\n\n<li>Your Mac still boots normally (important)<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>When it\u2019s not available<\/strong><\/h3>\n\n\n\n<p>If the option doesn\u2019t show up, it\u2019s usually because:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>macOS is too old<\/li>\n\n\n\n<li>your Mac is neither Apple silicon nor an Intel Mac with T2<br>Apple makes this clear and points you to a \u201cmanual\u201d process.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Method 2: the \u201cclassic\u201d format via macOS Recovery + Disk Utility<\/strong><\/h2>\n\n\n\n<p>This is the old-school method, still essential for many older Intel Macs\u2014and also handy when a Mac won\u2019t boot properly anymore.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Step A: boot into macOS Recovery<\/strong><\/h3>\n\n\n\n<p>Apple clearly separates the two worlds:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Apple silicon Mac<\/strong>: shut down, then press and hold the power button until you see the <strong>startup options<\/strong>, then choose <strong>Options<\/strong>.<\/li>\n\n\n\n<li><strong>Intel Mac<\/strong>: on reboot, use keyboard shortcuts; the most common is <strong>Command (\u2318) + R<\/strong>.<\/li>\n<\/ul>\n\n\n\n<p>If you get lost: Apple has a dedicated page explaining methods and tricky scenarios.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Step B: erase the drive with Disk Utility<\/strong><\/h3>\n\n\n\n<p>Once you\u2019re in the macOS utilities window (Recovery), open <strong>Disk Utility<\/strong>.<\/p>\n\n\n\n<p>On recent Macs using APFS, Apple recommends selecting the main volume and using <strong>\u201cErase Volume Group\u201d<\/strong> (this avoids leftovers from the \u201cData\u201d volume).<\/p>\n\n\n\n<p>In practice:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>In Disk Utility, show <strong>All Devices<\/strong> if needed (otherwise you might only see volumes)<\/li>\n\n\n\n<li>Select the internal drive \/ system volume (often <strong>Macintosh HD<\/strong>)<\/li>\n\n\n\n<li>Click <strong>Erase<\/strong><\/li>\n\n\n\n<li>Format: <strong>APFS<\/strong> (most common today)<\/li>\n\n\n\n<li>Scheme: <strong>GUID<\/strong> (if the option is available)<\/li>\n\n\n\n<li>Confirm<\/li>\n<\/ol>\n\n\n\n<p>Apple explains drive erase\/reformat steps in the Disk Utility documentation.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Step C: reinstall macOS<\/strong><\/h3>\n\n\n\n<p>After erasing, quit Disk Utility, then choose <strong>Reinstall macOS<\/strong> on the recovery screen and follow the assistant.<\/p>\n\n\n\n<p>Apple also provides a clear \u201cerase and reinstall\u201d guide (especially for Intel Macs without T2).<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>The sign everything is OK<\/strong><\/h3>\n\n\n\n<p>If you\u2019re prepping the Mac for someone else: ideally you reach the setup screen (language, country, etc.). At that point you can stop\u2014it\u2019s ready.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Special case: \u201cI just want a clean Mac\u201d vs \u201cI want to sell it\u201d<\/strong><\/h2>\n\n\n\n<p>It looks similar, but the intent changes two details.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>If you\u2019re keeping the Mac<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>You can restore from Time Machine after reinstalling<\/li>\n\n\n\n<li>You can set it up manually (often better, cleaner)<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>If you\u2019re selling \/ giving it away<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Carefully follow the \u201cbefore you transfer\u201d process (sign out of Apple services, iCloud, etc.)<\/li>\n\n\n\n<li>Use <strong>Erase all content and settings<\/strong> if available (best-case scenario)<\/li>\n\n\n\n<li>Don\u2019t leave any active user accounts on the Mac<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Formatting and security: what if you want to prevent any data recovery?<\/strong><\/h2>\n\n\n\n<p>Fair: sometimes \u201cerase\u201d doesn\u2019t feel like enough.<\/p>\n\n\n\n<p>On modern Macs, Apple stresses one key point:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>On Apple silicon or T2 Macs, data is <strong>encrypted automatically<\/strong>, and <strong>FileVault<\/strong> adds another layer by requiring your password at sign-in.<\/li>\n<\/ul>\n\n\n\n<p>And on encryption, Apple also explains something important: when an encrypted volume is deleted, the <strong>volume encryption key<\/strong> is securely removed, making the old data <strong>unusable<\/strong>.<\/p>\n\n\n\n<p>Blogger translation: on a recent Mac with encryption enabled, <strong>erase + reinstall<\/strong> is already pretty solid.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Formatting an external drive on Mac (USB stick, SSD, HDD)<\/strong><\/h2>\n\n\n\n<p>Here we move from \u201cformatting the Mac\u201d to \u201cformatting storage\u201d, but in real life it\u2019s the same question.<\/p>\n\n\n\n<p>In <strong>Disk Utility<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Select the external drive<\/li>\n\n\n\n<li>Click <strong>Erase<\/strong><\/li>\n\n\n\n<li>Choose the format based on your needs:<\/li>\n\n\n\n<li><strong>APFS<\/strong>: ideal for a drive used only with modern Macs (best performance and modern management)<\/li>\n\n\n\n<li><strong>Mac OS Extended (Journaled)<\/strong>: useful for compatibility with older macOS versions<\/li>\n\n\n\n<li><strong>exFAT<\/strong>: if you want Mac + Windows compatibility without headaches<\/li>\n<\/ul>\n\n\n\n<p>Apple describes the erase\/reformat process in the Disk Utility documentation.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Why buy a refurbished Mac from CertiDeal (and not just \u201cto pay less\u201d)<\/strong><\/h2>\n\n\n\n<p>I\u2019ll put it plainly, because this is usually where people hesitate: buying a <a href=\"https:\/\/eu.certideal.com\/en\/macbook-157\" target=\"_blank\" rel=\"noopener\"><strong>refurbished Mac<\/strong><\/a> isn\u2019t just about \u201cpaying less\u201d. It\u2019s mostly about <strong>trust<\/strong>. And that\u2019s exactly what we try to reduce friction around at <strong>CertiDeal<\/strong>.<\/p>\n\n\n\n<p>The first reassuring thing is our promise, 24-month warranty and 21 days money back: <strong>21 days to try it<\/strong> (and see if the Mac truly fits your workflow) and <strong>24 months of warranty<\/strong>. Not the typical \u201cpaper warranty\u201d, but a time frame that lets you choose refurbished without feeling like you\u2019re flipping a coin.<\/p>\n\n\n\n<p>Then there are very practical things that, in the end, make the real difference:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>You can test it for real<\/strong>: not just power it on and say \u201clooks fine\u201d, but work, install your apps, check battery life, keyboard, display. <strong>The 21 days are for that<\/strong>.<\/li>\n\n\n\n<li><strong>The 24-month warranty changes how risk feels<\/strong>: it makes the purchase calmer, especially if you choose a not-so-new model (often still very capable). Our warranty covers technical defects on the MacBook for the full 30 months.<\/li>\n\n\n\n<li><strong>A Mac is still a Mac<\/strong>: even after a few years, a well-chosen MacBook can still hold up extremely well. Refurbished often lets you aim for a better model (or more storage\/RAM) at the same budget, instead of settling for \u201cbasic new\u201d just because it\u2019s new.<\/li>\n\n\n\n<li><strong>The environmental impact isn\u2019t marketing fluff<\/strong>: extending a device\u2019s life reduces the need to manufacture a new one. And with long-lasting products like Macs, that choice makes sense beyond slogans.<\/li>\n<\/ul>\n\n\n\n<p>Bottom line: the goal isn\u2019t to \u201cconvince\u201d you at all costs. It\u2019s to make the purchase simple and normal, with two clear safety nets (trial + long warranty) so refurbished becomes an obvious choice, not a gamble.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>FAQ on how to format Mac<\/strong><\/h2>\n\n\n\n<p><strong>Is \u201cErase all content and settings\u201d enough to sell my Mac?<\/strong><br>Yes\u2014on compatible Macs it\u2019s the cleanest and easiest method, as long as you\u2019ve handled backups and Apple ID\/iCloud steps beforehand.<\/p>\n\n\n\n<p><strong>Why don\u2019t I see \u201cErase all content and settings\u201d?<\/strong><br>It\u2019s only available on macOS Monterey (12) or later, and only on Apple silicon Macs or Intel Macs with the T2 chip.<\/p>\n\n\n\n<p><strong>APFS or Mac OS Extended: which should I pick for the internal drive?<\/strong><br>In most current cases, APFS is the right choice (modern macOS). Mac OS Extended is mainly for older systems or compatibility needs.<\/p>\n\n\n\n<p><strong>How do I boot macOS Recovery on an Apple silicon Mac?<\/strong><br>Shut down the Mac, press and hold the power button until you see startup options, then choose \u201cOptions\u201d.<\/p>\n\n\n\n<p><strong>And on an Intel Mac?<\/strong><br>Usually: restart and hold <strong>\u2318 + R<\/strong>. Apple also lists other key combos depending on which macOS version you want to reinstall.<\/p>\n\n\n\n<p><strong>After formatting, how do I get my data back?<\/strong><br>Either restore from Time Machine, or start \u201cclean\u201d and copy your files back manually. The second approach is often healthier, but it depends on your patience.<\/p>\n\n\n\n<p><strong>Can files be recovered after a format?<\/strong><br>It depends, but on recent Macs with encryption, erasing and removing keys makes recovery much harder. FileVault and key handling are the reason why.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Final thoughts<\/strong><\/h2>\n\n\n\n<p>I\u2019ll say it bluntly: \u201c<strong>formatting a Mac<\/strong>\u201d in 2026 is no longer a task reserved for people who enjoy suffering. On compatible machines, <strong>Erase all content and settings<\/strong> is exactly what macOS should have offered for years: a clean reset designed for resale and security, not for fighting partitions and volumes.<\/p>\n\n\n\n<p>Where I\u2019m more cautious is older Intel Macs. Recovery + Disk Utility works great, but it requires discipline: pick the right volume, the right format, and don\u2019t forget the Apple ID part. You can do it fast\u2026 and you can mess it up fast, too.<\/p>\n\n\n\n<p>And while we\u2019re at it: refurbished devices, when done properly with serious warranties, have nothing left to prove. A long coverage period like CertiDeal\u2019s <strong>24 months<\/strong> genuinely changes how risk feels: the purchase becomes calmer, almost \u201cnormal\u201d\u2014which is exactly how it should be.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>There are two kinds of \u201cformatting\u201d on a Mac. The one you do because you want to sell the machine and sleep easy. And the one you launch because the Mac starts acting weird (crashes, slowdowns, strange bugs) and you want to go back to a clean base. In both cases, the word \u201cformat\u201d can [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":1184,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[56],"tags":[],"class_list":{"0":"post-1185","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-mac-tips"},"_links":{"self":[{"href":"https:\/\/mag.certideal.com\/en\/wp-json\/wp\/v2\/posts\/1185","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mag.certideal.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mag.certideal.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mag.certideal.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mag.certideal.com\/en\/wp-json\/wp\/v2\/comments?post=1185"}],"version-history":[{"count":1,"href":"https:\/\/mag.certideal.com\/en\/wp-json\/wp\/v2\/posts\/1185\/revisions"}],"predecessor-version":[{"id":1186,"href":"https:\/\/mag.certideal.com\/en\/wp-json\/wp\/v2\/posts\/1185\/revisions\/1186"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/mag.certideal.com\/en\/wp-json\/wp\/v2\/media\/1184"}],"wp:attachment":[{"href":"https:\/\/mag.certideal.com\/en\/wp-json\/wp\/v2\/media?parent=1185"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mag.certideal.com\/en\/wp-json\/wp\/v2\/categories?post=1185"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mag.certideal.com\/en\/wp-json\/wp\/v2\/tags?post=1185"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}