here's the thing

How to back up your Mac with Time Machine (weekend project)

Even the most reliable desktops and laptops (Macs included) depend on hard drives for storing all your precious photos, music, email, and other personal files—and most hard drives still consist of moving parts that will, eventually, begin to wear out or even seize up altogether.

So, what’ll happen to all your precious music, photos, home videos, and other personal files when your hard drive finally conks out? (And it will, eventually.) One word: poof.

And even if your hard drive doesn’t fail you, consider this: what would happen if, say, you left your MacBook on a plane by mistake? Or someone (gulp) stole it? Yes, your hardware would be gone; worse, though, your personal files would be missing, perhaps lost forever.

Having a recent backup of your entire system will save you the heartache of a failed hard drive or a stolen computer—and the good news for Mac users is that Apple’s own backup utility, called Time Machine, couldn’t be easier to set up and use.

What you’ll need:

Also, if you’re buying an backup drive for a MacBook, consider a portable drive that draws power from its USB cable—meaning no need for a separate AC adapter. Portable hard drives are incredibly handy, especially for backing up a laptop; keep in mind, however, that they’re pricier than larger desktop external drives with individual AC plugs (which may be the best choice for desktop iMac systems).

Now, what follows may look a little intimidating—a huge list of steps, right? But don’t worry. The Time Machine backup process is incredibly easy, especially once it’s all set up. This won’t hurt a bit.

OK … so you have your hard drive ready and your Mac powered on. Ready to begin? Let’s get started!

So, now you have Time Machine up and running. What are the best ways to use it on a day-to-day basis?

If you have an iMac, I recommend keeping your backup drive connected all the time. That way, you can pretty much forget about Time Machine—it will keep backing up your Mac every hour, whenever your Mac is powered on.

If you have a MacBook, it probably isn’t feasible to have a backup drive—even a smaller, portable one—connected all the time. Instead. keep your new drive somewhere handy (I have mine tucked away in a nearby closet) and try connecting it once a day or so, whenever you know you’ll be working (or relaxing) with your MacBook for at least a half-hour.

And remember—the more often your back up your Mac with Time Machine, the faster each “incremental” backup will go.

Now: Let’s say something bad happens. Maybe you deleted a file you didn’t mean to—or, worse yet, you Mac refuses to boot up, and clerks at the Apple Store shake their heads sadly and tell you your main hard drive has given up the ghost. Now what?

If you need to retrieve a single file…
Open Time Machine in your Applications folder, or by clicking the green Time Machine icon in your desktop dock; when you do, your entire desktop will slide away and a window for your main hard drive will appear—complete with several (or even dozens) of similar windows all lined up behind the first, stretching back into what looks to be the Milky Way galaxy. Weird, right?

Each of those windows you’re seeing represents a previous backup stored by Time Machine—think of them as “snapshots” taken in the previous hours, days, weeks, and (eventually) months.

So, let’s say there was a photo on your desktop that you accidentally deleted, just now. With Time Machine, you can essentially … well, go back in time and snatch it back.

If you need to restore your entire hard drive…
OK, so say the hard drive on your iMac up and died—or, scarier yet, you left your MacBook at Starbucks and someone made off with it.

In those nightmare scenarios, the good news is that you’ve been keeping regular backups with Time Machine, and not all is lost. Once you get a new hard drive for your Mac—or a new system altogether—you can restore your backed-up files with Time Machine.

Questions about this whole process? Let me know!