- OS X: You can keep all your most private files just a click away when you need them, and keep people from snooping around them while you're not looking, just by creating an encrypted disk image.
- Upgrading your operating system to macOS 10.14 or later will allow Office updates to be delivered for your apps. Note that new installs of Microsoft 365 for Mac or Office 2019 for Mac.
- As a rule of thumb, be sure to keep available space above about 5 to 10 percent of the drive's overall capacity. A couple of the leading culprits for hogging hard drive space are the Trash.
Five simple steps to keep your Mac safe from hackers Even Apple users need to protect their data and online privacy, and keep their device secure. The world of Mac (Including the scary bits). Similarly, in Mac Outlook, multiple duplicate tokens will generate in Keychain. It will lead to a complex situation and confuse with the authentic credentials. As a result, it forgets the original password and keeps asking for it. That’s why Outlook 2016/2019 Mac keeps asking for a password.
You can use an external display or projector with a Mac notebook while its built-in display is closed. This is known as closed-clamshell or closed-display mode.
Check requirements
To use closed-display mode with your Mac notebook, here's what you need:
- An AC power adapter or an external display that provides power over USB-C or Thunderbolt 3 (USB-C).
- An external keyboard and mouse or trackpad, either USB or wireless.
- A USB-C to USB adapter or cable if you're using a USB mouse or keyboard with a Mac that has USB-C ports.
- An external display or projector.
Enable closed-display mode
- Connect your USB keyboard or mouse to your Mac or external display, or pair your Bluetooth keyboard or mouse with your Mac. If you use a Bluetooth keyboard or mouse, choose Apple () menu > System Preferences, click Bluetooth, then verify Bluetooth is on.
- Connect your Mac to power with the AC power adapter. Some external displays, like the LG UltraFine 5K, also charge your Mac.
- Connect your external display or projector to the appropriate port on your Mac. Use an Apple video adapter if necessary. Some external displays have a USB cable that needs to be connected to your Mac.
- After your Mac notebook's desktop appears on the external display, close your computer's lid. You might have to press a key or click your mouse to wake the external display.
If your external display or projector doesn't turn on after you connect it to your Mac, connect your display while your Mac is asleep or off, then wake or turn on your Mac.
Disconnect your display or projector
Before you disconnect your display or projector, put your Mac to sleep.
Choose Apple () menu > Sleep, then disconnect your display or projector.
If you leave your MacBook, MacBook Pro, or MacBook Air plugged in all the time—no matter the vintage—the battery suffers wear for being charged to full. Over time, the maximum charged capacity diminishes and you lose many minutes—even hours—of usable time. It is just a characteristic of the lithium-ion batteries in laptops and nearly all modern electronics.
Here is a quick list of the best practices for managing your MacBook’s battery.
- Routinely unplug your laptop, as frequently as daily, and let it drop its power down to the 30 to 40 percent range.
- Don’t fully discharge your battery regularly—that is, don’t let it run down to zero. As Battery University (not a degree-granting institution) notes, “If at all possible, avoid full discharges and charge the battery more often between uses.…There is no memory and the battery does not need periodic full discharge cycles to prolong life.”
- With modern Apple laptops, in macOS Catalina’s 10.5.5 release you can make sure that Battery Health Management is enabled in the Energy Saver preference pane’s Battery tab by clicking Battery Health.
- In macOS 11 Big Sir, recent Mac laptops will have more modern options enabled by default.
If you’d like more details, read on.
The lowdown on topping up batteries
Lithium-ion batteries are a far sight better than their nickel-based predecessors. Even the later nickel-metal hydride (NiMH) batteries required a regular full discharge—taking the battery down to no stored capacity—to keep them in good shape. Li-ion batteries are excellent at charging and discharging in varying amounts over time and losing relatively little charge when idle for long periods.
But the way in which they store energy requires careful charging past about 80 percent capacity. After that point, it’s easy for the batteries to overheat, which can damage them or, in the worst case, cause bulging or even fires. That’s why battery circuitry on all devices throttles charging speed from 80 to 100 percent.
If you ever wondered why your devices charge very fast and then very slowly, that’s why. And 100 percent isn’t really “100 percent.” It’s the maximum that a battery’s controlling circuitry or connected operating system believes it can safely hold when “full.”
Even with the most careful algorithms to get to 100 percent, lithium-ion batteries simply age faster when they’re topped up all the time. Battery University explains it succinctly:
Lithium-ion suffers from stress when exposed to heat, so does keeping a cell at a high charge voltage…Exposing the battery to high temperature and dwelling in a full state-of-charge for an extended time can be more stressful than cycling.
Apple recognized this as a problem with iPhones in particular, and built into iOS an awareness of a battery’s available capacity, which led it to throttle certain tasks when the battery couldn’t deliver enough juice without the iPhone shutting down. (See Settings > Battery.) Much has been written about Apple’s lack of disclosure, apology for the issue, and discounted battery-replacement program for older phones.
IDG
This minor crisis also led the company to add more detail about battery capacity and charge, and shape charging more intelligently. Apple no longer always ensures an iPhone and iPad charges to 100 percent when plugged in, but observes your charging patterns and adapts to charge only as necessary to give you the most stored juice you need at any given time.
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That leads to greater battery life. My iPhone 11 Pro from last October shows 99 percent battery capacity, which is quite a bit higher than previous phones I’ve owned over that period of time. (The included one-year warranty on Apple’s battery-powered devices allow for a no-charge replacement if capacity drops below 80 percent in that first year. AppleCare+ extends that replacement for as long as you’re paying for the warranty.)
Apple brought a charging algorithm for its laptops that sport Thunderbolt 3 to macOS Catalina in the 10.15.5 update that isn’t quite the same, but it is designed to take the edge of a battery as it ages. In the Energy Saver preference pane’s Battery tab, click Battery Health. Battery Health Management should be checked; if not, you almost certainly want to enable it. (Mac laptops with Thunderbolt 3 currently include the MacBook Pro models since 2016 and MacBook Air models since 2018.)
Keep On Mac Os Download
With the preview of Big Sur, Apple promises the same sort of charging algorithm in iPhones and iPads for recent Mac laptops as well. It’s a painless and management-free way to get more life out of your laptop battery.
This Mac 911 article is in response to a question submitted by Macworld reader Collin.
Correction: This article initially didn’t note which Mac laptops offered the Battery Health option in Catalina and the upcoming Big Sur.
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