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Boot Camp Assistant User Guide

Use the fastest ports your old Mac has to connect peripherals—from slowest to fastest, it goes USB 1.1, FireWire 400, USB 2.0, FireWire 800, USB 3, Thunderbolt—but if the ports your Mac has. You must be at least 18 years old to be eligible to trade in for credit or for an Apple Store Gift Card. Not all devices are eligible for credit. More details are available from Apple’s Mac trade‑in partner and Apple’s iPhone, iPad, and Apple Watch trade‑in partner for trade-in. Tomorrow is the 30th anniversary of the Mac, so it's a great time to revisit the Macs of the past. You can't run really old Mac software on a modern computer, but there are several ways to emulate. However, when Apple launched Mojave the Mac App Store changed, and these installers are no longer downloadable from the store - unless you are using an old version of macOS/macOS X.

You need an external USB drive to install Windows on older Mac computers. To find out whether you have a Mac that requires an external USB drive, see the “Learn more” section in the Apple Support article Install Windows 10 on your Mac with Boot Camp Assistant. If your Mac is a newer model that doesn’t require a USB drive, follow the instructions in Install Windows on your newer Mac using Boot Camp instead.

What you need

  • The keyboard and mouse or trackpad that came with your Mac. (If they aren’t available, use a USB keyboard and mouse.)

  • A blank 16 GB or larger external USB 2 flash drive, formatted as MS-DOS (FAT).

    To format an external USB drive as MS-DOS (FAT), use Disk Utility, located in /Applications/Utilities. In Disk Utility, choose View > All Devices, select the USB drive in the sidebar, then click Erase in the toolbar. In the dialog, enter a name for the drive, choose MS-DOS (FAT) from the Format pop-up menu, choose Master Boot Record from the Scheme pop-up menu, then click Erase.

  • A full-installation, 64-bit version of Windows 10 on a disk image (ISO file) or other installation media.

    You can download a Windows 10 Disc Image (ISO File) from Microsoft.

  • Sufficient free storage space on your startup drive. For information about the amount of free space needed, see the Apple Support Article Install Windows 10 on your Mac with Boot Camp Assistant.

Before you begin

Before you install Windows, make sure you back up important files.

You can use Time Machine or any other method to back up your files. For information about backing up files, see Back up your files with Time Machine and Ways to back up or protect your files.

Perform the installation

Do the following steps in order.

Step 1: Check for software updates

Before you install Windows, install all macOS updates.

  1. On your Mac, log in as an administrator, quit all open apps, then log out any other users.

  2. Choose Apple menu > System Preferences, click Software Update, then install all available updates.

    If your Mac restarts after installing an update, open Software Update again to install any additional updates.

Step 2: Prepare your Mac for Windows

Boot Camp Assistant prepares your Mac by creating a new partition for Windows named BOOTCAMP and downloading the Boot Camp support software.

Important: If you’re using a portable Mac, connect it to a power source before continuing.

  1. Connect an external USB drive or insert a flash drive into the USB port on your Mac; keep it connected or inserted while you install Windows and the Windows support software.

  2. On your Mac, open Boot Camp Assistant , located in /Applications/Utilities.

  3. At the introduction screen, click Continue.

    The system is checked for total available disk space. Older Time Machine snapshots and cached iCloud files are removed to make space for Boot Camp. This process may take a long time to complete (you can click the Stop button to skip this process).

  4. At the Select Tasks step, select all the tasks, then click Continue.

  5. At the Create Bootable USB Drive for Windows Installation step, choose the Windows ISO image and the USB drive, then click Continue.

    The Windows files are copied to the USB drive. This process may take a long time to complete (you can click the Stop button to interrupt this process).

  6. At the Create a Partition for Windows step, specify a partition size by dragging the divider between the macOS and Windows partitions. If you have multiple internal hard drives, you can select a different hard drive from the one running macOS and create a single partition on that drive to use solely for Windows.

  7. Click Install.

When this step is complete, the Windows installer starts.

Step 3: Install Windows

  1. In the Windows installer, follow the onscreen instructions.

  2. When you’re asked where to install Windows, select the BOOTCAMP partition (you may need to scroll through the list of partitions to see it), then click Next.

    WARNING: Do not create or delete a partition, or select any other partition. Doing so may delete the entire contents of your macOS partition.

  3. Continue following the onscreen instructions to finish installing Windows.

    After you install the Windows software, your Mac automatically restarts using Windows.

  4. Follow the onscreen instructions to set up Windows.

Step 4: Install Boot Camp on Windows

After installing Windows, Boot Camp drivers that support your Mac hardware start installing.

Note: If the support software doesn’t install automatically, you need to install it manually. For instructions, see the Apple Support article If the Boot Camp installer doesn't open after using Boot Camp Assistant.

  1. In the Boot Camp installer in Windows, follow the onscreen instructions.

    Important: Do not click the Cancel button in any of the installer dialogs.

    If a message appears that says the software you’re installing has not passed Windows Logo testing, click Continue Anyway.

    You don’t need to respond to installer dialogs that appear only briefly during installation, but if a dialog asks you to install device software, click Install.

    If nothing appears to be happening, there may be a hidden window that you must respond to. Look behind open windows.

  2. When the installation is complete, click Finish, then click Yes to restart your Mac.

  3. After your Mac restarts, follow the instructions for any other installers that appear.

See alsoGet started with Boot Camp on MacTroubleshoot Boot Camp Assistant problems on MacApple Support website: Boot Camp Support

We’re here at the workspace of John Quimble, a Mac SE/30 owner who is seeking to upgrade. The crew of This Old Mac is filming John’s renovation of his old computer into a new machine.

Hi John.

Hi Bob. Why don’t you tell us what’s going on here.

Well, Bob, as you can see, we’re installing the DVD drive now. We had to knock out some interior space to make room, enlarge this slot here, and run this cable, which starts here and goes through this conduit, around the side, outside the box really, and down into the new CPU we’ve hidden underneath our patio decking.

Tell us why the CPU is under the deck.

Well basically, it was because it wouldn’t fit in the original SE case, especially after the other upgrades.

What other upgrades have you done?

Well we started out with a flat panel monitor upgrade. We knew there weren’t any adapters for the new digital screens from Apple, so we mounted a VGA compatible screen on an extensible arm on top of the unit.

That’s a Sony, isn’t it?


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What else have you added?

Well, we needed a new video board to run the Sony, and that led us to the lack of color support on the old SE/30 motherboard, so we’re using that as a wall hanging in the front hallway and replacing the motherboard with one we pulled from a new iMac flat-panel and hid behind this wall clock.

I thought the motherboard was in the deck?

No, Bob, what’s under the deck isn’t the motherboard exactly, but in fact it is just the processor card.

Why did you put the processor under the deck?

Because it wouldn’t fit behind the wall clock.


Users have complained for years about the lack of a second button on the Mac mouse, and we didn’t think the beige original fit well with our sparse Japanese decor in the den, so we got one of those new half-size keyboards you type with on one hand.

The Half Keyboard from

Yes. We got one of those, which is black, and mounted it on top of a Microsoft Intellimouse.


Hot glue. And now we have the world’s first 120 button-equivalent mouse.

Wow. That’s revolutionary. Tell us about the DVD.

Well, actually, it’s the only component that fit in the original SE case, except we had to remove the internal framework to mount it, and cut a new hole…

With a band saw?

…yes, a band saw, to accommodate the drive mechanism. Basically the entire front of the device just flops down to allow access.

It kind of looks like it’s sticking its tongue out.

We like it.

That’s all the time we have. Next week, we’ll take a look at how John intends to convert an old SCSI flatbed scanner into a goldfish bowl stand and look at his luggage collection, which consists entirely of hollowed out blue-and-white cases.

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Thanks Bob.

Thanks John.

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