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Your new Mac running macOS Tahoe ships with several features that require manual activation, a battery management option that did not exist a year ago, and at least one security setting that surprises nearly every user when they find out about it. The setup wizard covers the basics, but it does not surface the settings where Tahoe actually changed what a Mac can do. This guide covers the twelve changes worth making in the first hour, along with the exact System Settings paths for each.
According to Wikipedia's macOS Tahoe documentation, macOS Tahoe (version 26) was released on September 15, 2025, with the most recent update, version 26.4, arriving on March 24, 2026. It represents the most significant macOS redesign since Big Sur in 2020. The visual change most people notice first is the new Liquid Glass interface, where windows, menus, and the Dock take on a translucent, reflective quality. The functional changes underneath that visual layer are more consequential for day-to-day use.
Version 26.4 is the current version and the one that added the battery Charge Limit feature covered below. If a Mac is still running an earlier Tahoe release, that specific option will not appear. Tahoe is also the final macOS release to support Intel-based Macs; the only Intel models it runs on are the Mac Pro (2019), MacBook Pro 16-inch (2019), MacBook Pro 13-inch four-port (2020), and iMac (2020).
We note that the exact feature availability depends on whether a Mac has Apple silicon or an Intel processor, a distinction Tahoe makes more consequential than any prior release. Apple Intelligence, Spotlight Quick Keys, and the battery Charge Limit are all Apple silicon-only features. An Intel Mac running Tahoe gets the visual redesign but not the capability expansions most users are excited about.
The settings below are organized by impact. Battery and AI productivity changes come first because they affect every session. Security, navigation, and maintenance settings follow.
MacBook batteries degrade faster when they spend long stretches held near full charge. Lithium-ion cells store energy through a chemical reaction, and that reaction produces more heat and stress when the cell is pushed toward its maximum capacity. Sitting at 100 percent plugged in all day is harder on the battery than cycling between, say, 40 and 80 percent — and for MacBook owners who work primarily at a desk, that high-charge resting state is the norm rather than the exception.
MacRumors documented that macOS Tahoe 26.4 introduced a Charge Limit slider that lets users set a maximum battery charge from 80 to 100 percent, adjustable in 5-percent increments. The path is System Settings → Battery → click the information icon next to Charging. Apple's support documentation confirms the behavior: the Mac will charge to within a few percentage points of the set limit and display "Charged to [%] Limit" in the battery menu. Occasional calibration charges above the limit are normal and intentional.
The trade-off is direct. Setting an 80-percent limit on a MacBook with 10-hour runtime means approximately 8 hours on battery when unplugged. For users who rarely leave their desk, this is a worthwhile exchange that preserves battery capacity across years of use. For users who travel regularly and need maximum runtime each day, keeping the limit at 100 percent or close to it makes more sense. Cult of Mac notes that the feature integrates with the Shortcuts app through "Set Charge Limit" and "Get Charge Limit" actions, enabling automation such as automatically raising the limit when a Travel Focus mode is active.
We should note that this feature requires macOS Tahoe 26.4 or later and is only available on Apple silicon Macs; Intel models running Tahoe will not see the Charge Limit option.
Optimized Charging has been available since macOS Big Sur in 2020, yet it still left desk-mode users, MacBook owners who keep their laptop plugged in all day, without a hard ceiling on what "full" means. Optimized Charging is a pattern-learning system: it watches when a user typically unplugs and delays full charging until shortly before that point. A user with irregular hours or one who simply forgets to unplug still ends up at 100 percent regularly. The Charge Limit is a hard rule rather than a prediction, and the pattern suggests Apple introduced it specifically to close the gap that Optimized Charging's prediction-based approach was never structured to address for always-plugged-in users.
Apple marketed Tahoe heavily on the strength of Apple Intelligence, its on-device AI suite. What the marketing materials do not emphasize is that the feature requires manual activation after setup is complete.
The activation path is System Settings → Apple Intelligence & Siri → turn on Apple Intelligence. Before enabling it, check available storage. Nektony's hands-on testing found that Apple Intelligence requires between 7 and 13 gigabytes of storage, with Apple officially citing approximately 7GB as the baseline. Users on a 256GB Mac who are already running low on space should clear room before enabling.
We should clarify that Apple Intelligence is not available on Intel-based Macs even when running macOS Tahoe. Only M-series Macs can use it.
Once active, Apple Intelligence adds Writing Tools to right-click context menus throughout the system, wherever text can be edited in Mail, Notes, Pages, and compatible third-party apps. It also brings AI-powered task detection to Reminders, Genmoji creation, and automation through the Shortcuts app. Users who want to connect ChatGPT as an additional model can do so under System Settings → Apple Intelligence & Siri → Extensions → ChatGPT. That connection is optional and requires a separate ChatGPT account for full access.
Apple processes the vast majority of Apple Intelligence requests on-device, which means personal documents and messages are not sent to external servers for routine tasks. It is worth noting that Siri itself remains on a separate development track from Apple Intelligence, with further Siri improvements announced for the next major release. Users curious about what Apple has committed to for Siri going forward can read the full breakdown of Apple Siri iOS 27: The Honest Version of What's Been Promised — which covers the Gemini deal structure, the announcement timing pattern, and what the iOS 27 redesign actually means for users who have been waiting.
Spotlight in macOS Tahoe now includes over 100 built-in actions, send emails, create reminders, start timers, generate AI images, all without opening a single app, and it still isn't enabled or discoverable by default during setup. Most users treat Spotlight as a search bar. In Tahoe, it has become something considerably closer to a command center.
Apple's newsroom release describes this as Spotlight's "biggest update ever," enabling users to "directly execute hundreds of actions." We found Apple's own newsroom description instructive: the company calls this Spotlight's "biggest update ever," yet the Actions tab requires deliberate navigation to discover during ordinary Mac use.
To access Spotlight Actions, press Command+Space to open Spotlight, then press Command+3 to jump directly to the Actions tab. TWiT.TV's hands-on guide documents that the feature supports custom Quick Keys: two- or three-character shortcuts a user assigns to frequently used actions. Assigning "se" to Send Email, for example, means typing those two letters in Spotlight and pressing Return launches a new message, without ever switching away from whatever app was open. Actions are also context-sensitive, adapting to the currently active application and whatever text is in the clipboard.
Third-party apps that implement Apple's App Intents API appear in the Actions list automatically, and the number of available actions is expected to grow as more developers adopt the standard. Spotlight can also search the menu bar of the currently active app, making it useful for locating settings buried in application menus. More than 100 built-in actions ship with Tahoe at launch, covering the full range of everyday communication and productivity tasks.
The Mac trackpad is a genuine differentiator, and several of its most useful behaviors are switched off at the factory or hidden in a settings location most users never visit.
Tap-to-click is off by default. Without enabling it, every click requires physically pressing the trackpad down, which is both louder and more fatiguing during extended use. Enable it at System Settings → Trackpad → toggle on Tap to Click.
Three-finger drag is the most consistently praised gesture among experienced Mac users, and it is buried under System Settings → Accessibility → Pointer Control → Trackpad Options. Enabling "Use trackpad for dragging" and selecting the three-finger option lets a user move any window by placing three fingers on the trackpad and sliding, without pressing or clicking. We recommend enabling three-finger drag as the single highest-impact trackpad change for users new to Mac.
Secondary Click (right-click) can be configured in the main Trackpad settings and set to two-finger tap, which is the natural choice for most users. App Exposé, which shows all open windows of whichever app is currently active, is in Trackpad → More Gestures → App Exposé. It is set to off by default and takes roughly ten seconds to enable.
Finder, the Mac's file manager, ships in a state that hides useful information and directs new users toward the least-organized locations. Three changes address most of the friction.
First, file extensions. By default, macOS does not show the extension at the end of filenames, so a document appears as "Report" rather than "Report.docx." This creates genuine confusion when working with files that exist in multiple formats. The fix is Finder → Settings → Advanced → check "Show all filename extensions." We consider showing all file extensions the single Finder change with the broadest benefit across all skill levels.
Second, new Finder windows open to Recents by default, which is useful for some workflows and disorienting for others. Changing the default to the home folder, Downloads, or Desktop takes place under Finder → Settings → General → "New Finder windows show."
Third, screenshots save to the Desktop by default. For anyone who uses screenshots regularly, the Desktop fills quickly. To redirect them, press Command+Shift+5 to open the screenshot toolbar, click Options, and change the Save To destination.
macOS also restricts app installations to the App Store by default. Many legitimate apps are not available through the App Store and require a setting change to install without warnings. The path is System Settings → Privacy & Security → Security → "Allow applications downloaded from" → select App Store and Identified Developers.
Dark mode and Auto mode, which switches based on time of day, are the display customizations most users handle immediately. Several less obvious display settings have more practical impact.
True Tone adjusts the display's white balance to match the ambient light in the room, which makes the screen easier to look at for general use. For photo editing, video color grading, or any work where color accuracy matters, True Tone should be disabled. It lives in System Settings → Displays → toggle off True Tone. We observe that for users doing color-accurate work in photos or video, True Tone should be disabled to prevent the display from shifting white balance automatically.
Night Shift shifts the display toward warmer tones in the evening to reduce blue light exposure. The most useful configuration is Sunset to Sunrise, which activates automatically. Find it under Displays → Night Shift.
macOS Tahoe's Liquid Glass design introduces a consideration that prior versions did not: the transparent sidebars and menus can make text harder to read against certain desktop backgrounds. If the interface feels hard to parse, System Settings → Accessibility → Display → turn on "Reduce Transparency" switches the system to a more opaque presentation without disabling any features.
For privacy on public networks, Wi-Fi settings include a Private Address option. Setting it to Rotating in Wi-Fi → Details on the current network assigns a different identifier on each network, which prevents advertisers and network operators from tracking a device across locations.
FileVault is disk encryption, and it protects the contents of a Mac's drive if the computer is lost or stolen. Without encryption, someone with physical access to the hardware can potentially read files without ever knowing the login password. FileVault is free, available to all macOS users, and enabled at System Settings → Privacy & Security → FileVault. It is often presented during initial setup but easy to skip.
The macOS firewall ships disabled; Optimize Mac Storage ships enabled on new Macs; autocorrect is on; and Apple Intelligence requires manual activation, four consequential defaults that Apple set for the median first-time user, not for the user who reads setup guides. Each default makes the out-of-box experience smoother for someone who has never used a Mac. Together, they create friction for anyone who wants deliberate control over security and behavior.
We note that the security community holds genuinely different views on whether the macOS firewall is necessary for typical home users, and the honest guidance is that enabling it is low-friction and adds a real layer for anyone working from cafés or airports. macOS does not run the kinds of listening services that historically justified blocking incoming connections, but the firewall remains a sensible addition. It lives at System Settings → Network → Firewall.
Autocorrect's behavior in macOS is aggressive by default, and it regularly reasserts corrections even after a user has manually fixed a word. Disabling it under System Settings → Keyboard → Text Input → click Edit next to Input Sources → uncheck "Correct spelling automatically" leaves the red-underline spellcheck intact while stopping forced substitutions.
For users who want stronger iCloud privacy, Apple's security documentation confirms that with standard protection, iCloud Backup, Photos, and Notes are not end-to-end encrypted, and Apple holds the encryption keys. Advanced Data Protection, enabled at System Settings → [Your Name] → iCloud → Advanced Data Protection, raises the number of end-to-end encrypted categories from 15 to 25, including those three. With it enabled, Apple cannot assist with data recovery if a user loses account access, so storing the recovery key somewhere safe before enabling is essential.
Optimize Mac Storage is enabled by default on new Macs, and its purpose is useful: when the drive starts filling up, macOS moves older files to iCloud and replaces them locally with lightweight stubs. The file appears to be there, but the actual data lives in the cloud. Opening it triggers a download.
The gap most users discover later is that Time Machine, Apple's built-in backup system, backs up only what is physically on the drive. Files that macOS has moved to iCloud have no local backup. A user with Time Machine running on an external drive and Optimize Mac Storage enabled may believe they have a full backup when in practice their older files exist only in iCloud. If both iCloud and the Mac itself were to fail simultaneously, those files would be unrecoverable.
This is not an argument against Optimize Mac Storage. For users with generous iCloud storage and reliable internet, it works well. The key is knowing the trade-off before choosing. We flag that the right choice here depends on individual storage configuration, and users with limited iCloud plans or unreliable internet connections should disable this feature. The setting is at System Settings → [Your Name] → iCloud → Drive → Optimize Mac Storage.
System updates contain security patches. A Mac that is never updated is one that accumulates known vulnerabilities over time. Enabling automatic updates takes thirty seconds and removes a recurring obligation. The path is System Settings → General → Software Update → click the information icon next to Automatic Updates → enable all toggles. App Store apps can be set to update automatically through the App Store menu → Settings → check Automatic Updates.
We consider enabling automatic updates the single most underrated setup step, since a Mac that falls behind on security patches is a misconfigured Mac regardless of how every other setting is tuned.
A new Mac ships with the Dock filled with Apple's default apps, many of which a given user will never open. Removing unused apps reduces visual clutter and makes the Dock a more useful tool; the apps remain available in the Applications folder regardless. Dock size, magnification, and auto-hide are all in System Settings → Desktop & Dock. Auto-hide keeps the Dock out of view until the cursor approaches the bottom of the screen, reclaiming vertical screen space.
System Settings → Battery → Options includes "Optimize video streaming while on battery," which reduces power consumption during streaming playback without a visible quality change in most conditions. It is off by default and takes one tap to enable.
The single shortcut worth learning immediately is Command+Space, which opens Spotlight Search. Given Tahoe's expanded Actions capability, this keystroke is now more consequential than at any prior point in macOS history. Command+Tab switches between open applications. Command+W closes the current window without quitting the app. These three shortcuts together cover the majority of navigation tasks on a new Mac.
The settings above do not require technical knowledge or comfort with system internals. Each one is a single toggle or a path of three taps in System Settings. The combined effect after one setup session is a Mac that charges smarter, runs its AI features actively, backs up what it claims to back up, and gets out of its own way during daily use.