Start up from macOS Recovery

• Apple Bootable Installer Software
• Apple Bootable Installer Usb

To create a bootable installation flash drive using the Windows tool: Download and install the Windows USB/DVD Download tool. The final four letters of each file (before.exe) represent the language and region of the installer. Download the one for your desired language/location. With this handy bootable USB installer, you can reinstall macOS without much trouble. If the time comes to use this tool, insert it into the USB C port and boot the machine while holding down the. Create a bootable installer, then use it to install macOS on your Mac or another Mac. If you've just had your Mac logic board replaced during a repair, macOS Recovery may only offer the latest macOS compatible with your Mac. Install Disk Creator is a straightforward way to create a boot disk. I was able to make a macOS Sierra external USB boot disk in a few minutes, and the installation worked without a hitch.

Determine whether you're using a Mac with Apple silicon, then follow the appropriate steps:

• Apple silicon: Turn on your Mac and continue to press and hold the power button until you see the startup options window, which includes a gear icon labelled Options. Select Options, then click Continue.
• Intel processor: Make sure that your Mac has a connection to the internet. Then turn on your Mac and immediately press and hold Command (⌘)-R until you see an Apple logo or other image.

If you're asked to select a user you know the password for, select the user, click Next, then enter their administrator password.

Reinstall macOS

Select Reinstall macOS from the utilities window in macOS Recovery, then click Continue and follow the installer's instructions.

Follow these guidelines during installation:

• Allow installation to complete without putting your Mac to sleep or closing its lid. Your Mac might restart and show a progress bar several times, and the screen might be empty for minutes at a time.
• If the installer asks to unlock your disk, enter the password you use to log in to your Mac.
• If the installer can't see your disk, or it says that it can't install on your computer or volume, you might need to erase your disk first.
• If the installer is for a different version of macOS than you expected, learn about other installation options, below.
• If the installer offers you the choice between installing on Macintosh HD or Macintosh HD - Data, choose Macintosh HD.

When the installation is complete, your Mac might restart to a setup assistant. If you're selling, trading in or giving away your Mac, press Command-Q to quit the assistant without completing setup. Then click Shut Down. When the new owner starts up the Mac, they can use their own information to complete the setup process.

Other macOS installation options

By default, macOS Recovery installs the latest macOS that was previously installed on your Mac.* You can get other macOS versions using one of these methods:

• On an Intel-based Mac, you can use Option-Command-R at startup to upgrade to the latest macOS that is compatible with your Mac. Exceptions:
  • If macOS Sierra 10.12.4 or later was never previously installed, you will receive the macOS that came with your Mac, or the closest version still available.
  • If your Mac has the Apple T2 Security Chip and you never installed a macOS update, you will receive the latest macOS that was installed on your Mac.
• On an Intel-based Mac that previously used macOS Sierra 10.12.4 or later, you can use Shift-Option-Command-R at startup to install the macOS that came with your Mac, or the closest version still available.
• Reinstall macOS from the App Store instead of using macOS Recovery. If you can't install the latest macOS, you might be able to install an earlier macOS.
• Create a bootable installer, then use it to install macOS on your Mac or another Mac.

* If you've just had your Mac logic board replaced during a repair, macOS Recovery may only offer the latest macOS compatible with your Mac. If you erased your entire disk instead of just the startup volume on that disk, macOS Recovery may only offer the macOS that came with your Mac, or the closest version still available.

• Before you begin

Before you begin

To install Windows 10 Education Edition from IUware, or if you have a Windows 8.x installation disk but do not have an optical (CD/DVD) drive on your computer, you can create a bootable flash drive for the installation.

What you'll need

To complete the process, you'll need:

• A Windows or macOS computer connected to the internet.
  On a Windows computer, you must have administrator privileges.
• A flash drive with at least 8 GB of space
  The process described below will delete any data currently on your flash drive. Make sure to back up your flash drive's data to another storage location before proceeding.
• A valid product key that came with your Windows software. For Windows 10, this will be available on IUware. For Windows 8.x, this will be with the disc you purchased.

Insert your flash drive before beginning.

Create a bootable installation flash drive forWindows 10 Education Edition

1. Go to Windows 10 Education on IUware, and select either the 32-bit or the 64-bit version. Review and accept the terms, and then click Get product key. Copy the product key to use later.
2. Download and run the Academic Media Creation Tool. Accept the license terms, select Create installation (USB flash drive, DVD, or ISO file) for another PC, and click Next.
3. On the 'Select language, architecture, and edition' prompt, leave the default selections.
4. To have the Microsoft tool create your bootable flash drive, make sure your flash drive is plugged in, select USB flash drive, and click Next.

   If you plan to use Rufus instead, select ISO file and click Next. This will save the .iso file to your computer; then, to use Rufus and your .iso file to create a bootable installation flash drive, follow the directions below.

Create a bootable installation flash drive forWindows 8.1

See Recommended Windows operating systems at IU.

Download Windows 8.1

1. Go to Download Windows 8.1 Disc Image (ISO File).
2. From the Select edition drop-down menu, select Windows 8.1, and click Confirm.
3. Select the desired language and click Confirm.
4. Select the 32-bit Download or the 64-bit Download (recommended, unless the machine you're installing on doesn't support it), and download the disk image.

You can now use the .iso file to create a Windows 8.1 bootable installation flash drive using either a Windows tool or Rufus.

Create a bootable drive using the Windows USB/DVD Download tool

To create a bootable installation flash drive using the Windows tool:

1. Download and install the Windows USB/DVD Download tool. The final four letters of each file (before .exe) represent the language and region of the installer. Download the one for your desired language/location.
2. Open the Windows USB/DVD Download tool. The tool refers to itself as an older version tool, but works for Windows 8.1 media creation.
3. When prompted, browse to your .iso file, select it, and click Next.
4. When asked to select the media type for your backup, make sure your flash drive is plugged in, and then choose USB device.

   You may be prompted to insert the USB device even if the flash drive is already inserted. Ignore this, and choose the USB device you'll be writing to.

5. Click Begin Copying. If prompted, confirm that you wish to erase the flash disk.
6. The .iso files will start copying to the flash drive; the process can take several minutes. When it's finished, close the wizard and eject and remove the flash drive.

Create a bootable drive using Rufus

To use Rufus to create a bootable drive that is compatible with UEFI, follow the instructions below.

Use Rufus to write an .iso file

Apple Bootable Installer Software

1. Download Rufus. Rufus is a standalone program and does not require installation.
2. Open the Rufus program from where you downloaded it to run it.
3. From the Device drop-down menu, select your USB drive, if it isn't automatically selected.
4. Under 'Boot selection', select Disk or ISO image (Please select), if it isn't already chosen, and then click SELECT to choose the .iso file you downloaded.
5. Leave 'Image option' set to Standard Windows installation.
6. Leave 'Partition scheme' set to GPT.
7. For 'Target system', select UEFI (non CSM).
8. Under 'Format Options', to ensure the flash drive is compatible with UEFI, select FAT32 for 'File System'.
9. To create the flash drive with the 'Press any key to boot from USB' prompt at startup, under the 'Advanced format' options, select Create extended label and icon files.
10. When you are finished selecting options, click Start. When prompted, confirm that you want to erase the flash disk.
11. The .iso files will start copying to the flash drive; the process can take several minutes. When Rufus is done, close the program and eject and remove the flash drive.

Create a bootable installation flash drive on a macOS computer

1. From the Finder, open the Applications folder, and then Utilities.
2. Open the Boot Camp Assistant, and then click Continue. The next screen should give you a list of options.
3. UITS recommends making the USB drive installer first. You don't need to install Windows or download the support software at this time, as it will be easier to do both later. To proceed:
   1. Verify that the USB drive you will be writing to is plugged in.
   2. Uncheck the Install Windows 7 or later version and Download the latest Windows support software from Apple options.
   3. Check Create a Windows 7 or later install disk and click Continue.
4. Your USB drive should be listed in the 'Destination disk' area. Use choose to browse to your .iso file; after selecting it, click Continue.
5. If prompted, confirm your action and/or provide an administrator password. The process of writing the .iso file to the USB drive can take 20 minutes or longer.

Other resources

Apple Bootable Installer Usb