These advanced steps are primarily for system administrators and others who are familiar with the command line. You don't need a bootable installer to upgrade macOS or reinstall macOS, but it can be useful when you want to install on multiple computers without downloading the installer each time.

Download macOS

Find the appropriate download link in the upgrade instructions for each macOS version:

macOS Catalina, macOS MojaveormacOS High Sierra
Installers for each of these macOS versions download directly to your Applications folder as an app named Install macOS Catalina, Install macOS Mojave or Install macOS High Sierra. If the installer opens after downloading, quit it without continuing installation. Important: To get the correct installer, download from a Mac that is using macOS Sierra 10.12.5 or later, or El Capitan 10.11.6. Enterprise administrators, please download from Apple, not a locally hosted software-update server.

To start things off, connect the USB flash drive to your Mac. Make sure there’s no valuable data on there because it will be permanently wiped out in a couple minutes. Open Disk Utility (Applications Utilities) and click on your flash drive in the list on the left. Go to the Partition tab and select “1 Partition” from the Volume Scheme.

Sep 30, 2013  configd is a system configuration daemon that runs behind Mac OS X, most users will never notice or see the core OS X process running in the background of their Macs. With that said, configd can sometimes act up and cause unusual CPU spikes and fan activity making your Mac sound like a wind tunnel. Odd configd behavior is easily diagnosed by launching Activity Monitor, sorting by the “% CPU”. May 11, 2020  Now I have the most recent version 15.24 and the problem is still here. I am experiencing high cpu spikes 140%. When the computer offline cpu is ok at 4-20%. Only Outlook running, no active user on the computer, restarted 1 hour ago. Client: Outlook 2016 (MAC) 15.24. Protocol: Secure / Exchange Activesync. Server: Kerio Connect 9.1. Mar 20, 2020  To check CPU usage on Mac, use the default Apple utility Activity Monitor. Activity Monitor is a Mac performance monitor that shows what programs are running and how many resources they are using. Run Activity Monitor from the launchpad or from the Applications folder. Mac console app cpu spikes.

It will save me a lot of work back when I used to scan to a USB drive, switch it to my computer, and search HPScan directory and hope my document appeared. When completed and I clicked on Save. I went to my computer' scan folder and there each document had been saved to a separate jpeg. Thanks HP for a great, AND FREE, scan App. Hp 6970 software for mac. Delighted, I stacked several documents on my printers from feed and each document was scanned.

OS X El Capitan
El Capitan downloads as a disk image. On a Mac that is compatible with El Capitan, open the disk image and run the installer within, named InstallMacOSX.pkg. It installs an app named Install OS X El Capitan into your Applications folder. You will create the bootable installer from this app, not from the disk image or .pkg installer.

Use the 'createinstallmedia' command in Terminal

1. Connect the USB flash drive or other volume that you're using for the bootable installer. Make sure that it has at least 12GB of available storage and is formatted as Mac OS Extended.
2. Open Terminal, which is in the Utilities folder of your Applications folder.
3. Type or paste one of the following commands in Terminal. These assume that the installer is still in your Applications folder, and MyVolume is the name of the USB flash drive or other volume you're using. If it has a different name, replace MyVolume in these commands with the name of your volume.
   Catalina:*
   Mojave:*
   
   High Sierra:*
   El Capitan:
   
4. Press Return after typing the command.
5. When prompted, type your administrator password and press Return again. Terminal doesn't show any characters as you type your password.
6. When prompted, type Y to confirm that you want to erase the volume, then press Return. Terminal shows the progress as the bootable installer is created.
7. When Terminal says that it's done, the volume will have the same name as the installer you downloaded, such as Install macOS Catalina. You can now quit Terminal and eject the volume.

* If your Mac is using macOS Sierra or earlier, include the --applicationpath argument, similar to the way this argument is used in the command for El Capitan.

Use the bootable installer

After creating the bootable installer, follow these steps to use it:

1. Plug the bootable installer into a compatible Mac.
2. Use Startup Manager or Startup Disk preferences to select the bootable installer as the startup disk, then start up from it. Your Mac will start up to macOS Recovery.
   Learn about selecting a startup disk, including what to do if your Mac doesn't start up from it.
3. Choose your language, if prompted.
4. A bootable installer doesn't download macOS from the Internet, but it does require the Internet to get information specific to your Mac model, such as firmware updates. If you need to connect to a Wi-Fi network, use the Wi-Fi menu in the menu bar.
5. Select Install macOS (or Install OS X) from the Utilities window, then click Continue and follow the onscreen instructions.

Learn more

For more information about the createinstallmedia command and the arguments that you can use with it, make sure that the macOS installer is in your Applications folder, then enter this path in Terminal:

Catalina:

Mojave:

High Sierra:

El Capitan:

We previously showed you how to create a Windows 10 USB installation media when performing a clean install of Windows 10, but there might be an instance where the only machine you have available is a Mac. We'll show you to create a bootable USB flash drive with the Windows 10 installer from a Mac. It's easier than you think, thanks to the built-in Boot Camp Assistant from Apple.

Download Windows 10 Disc Image

First, you need to download the Windows 10 ISO file. Go to the download page and select the proper edition of Windows 10 in the dropdown menu. If you don't know what K, KN, or Single Language edition stands for, just select Windows 10 in the list.

Make Flash Drive Bootable Mac

Create USB installer with Boot Camp Assistant

After downloading the ISO file, you'll need to use Boot Camp Assistant to move it to a bootable USB drive.

1. Insert a USB flash drive to your Mac. Make sure it's at least 8GB, which is usually marked on the USB stick. You can also check by right-clicking the USB drive on your desktop and clicking Get Info. Check if the number next to Capacity is at least 8GB. All the files in the drive will be deleted, so make sure there are no important documents inside.
2. Open Boot Camp Assistant. The easiest way to launch it is through Spotlight Search, which you can bring up by pressing Command and Spacebar. Press Enter to launch the app.
3. Check the box for 'Create a Windows 7 or later version install disk' and deselect 'Install Windows 7 or later version.'

4. Click Continue to proceed.

5. Boot Camp Assistant will automatically locate the ISO file from your downloads folder, but make sure it is the right file. Click the 'Choose…' button and locate the ISO file. Make sure the destination disk is the USB thumb drive you've inserted.

6. Click Continue. It can take about 20 minutes to format and set up the USB installer on the Mac.

7. When Boot Camp Assistant is done, the USB drive will be renamed to WININSTALL. Click Quit to close the app and then Eject the USB drive.

That's it! You now have a bootable USB drive with the Windows 10 installer. You can use it to configure new Windows 10 PCs from scratch. We told you it was easy!

Have you tried creating a Windows 10 installer USB drive from a Mac before? Did you encounter any issues? Let us know your experience in the comments!

Mac Make Flash Drive Bootable

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Review: HONOR MagicBook 14 is a fun, low-cost notebook with one drawback

Those on a budget with just $550 may want to consider HONOR's MagicBook 14. While it runs a last-gen AMD Ryzen processor, the core features of this notebook are better than most in this price range. Here's our quick review of why you should (and shouldn't) get this affordable laptop.