Advertisement As you may know, you can reinstall macOS on your computer via the internet recovery. But did you know that you can create a bootable USB drive to install macOS from? This will let you boot your Mac from a different source if it won’t work normally, and makes installs on multiple machines easy. Let’s see how to do this. Choosing a USB Flash Drive for Installing Mac USB flash drives are cheaper than ever, so you won’t have to spend much for this task. However, make sure to buy a name-brand flash drive (like SanDisk, Kingston, or PNY) from a reputable store. Stay away from super-cheap drives with suspiciously high storage on sites like eBay. These drives have their firmware hacked to report a false size to your operating system. Not only will the transfer speeds be painfully slow, but using them may also result in loss of data or even a damaged USB port. Also, check to see what ports you have on your Mac. The 12″ MacBook has a single USB-C port, while MacBook Pro models from 2016 and later feature USB-C ports exclusively. Fortunately, there are USB-C drives available, or you can use a USB-C to USB-A adapter. Boot your Mac from CD, DVD, external drive, or USB flash drive. Use the keyboard arrows to choose your boot device, then press the Enter key. The computer will start up from the chosen volume, but bear in mind performance will likely be much slower than when you normally operate your Mac. This is especially true of USB flash drives. It’s best to go with a USB 3.0 drive, with a minimum size of 16GB. The is good overall value for the money; we’ve highlighted for more options. $9.75 Formatting Your USB Flash Drive You can only create a bootable installer for macOS on a Mac. If you’re using a flash drive that already has data on it, make sure to back up any important files as you’re going to erase everything in a moment. Navigate to Applications > Utilities, and open up Disk Utility. You should see your flash drive under the External section in the left pane. After selecting it, click on the Erase button along the top. Choose a friendly name (which you’ll use later), and make sure to choose Mac OS Extended (Journaled) for the format. Finally, click Erase and you’re done with this step. Descargar controladores dell latitude e6410. Downloading the macOS Installer To download the macOS installer, open the App Store and search for your version of macOS. Click on the Download button if you’re on High Sierra or earlier. MacOS Mojave is slightly different, as it opens up your System Preferences to download the installer. This is because one of is a new way of installing updates. A friend of mine gave me an old mac mini, the white one, i guess from 2007 or something. It has Mac OS 10.x installed (actually it has 3 versions installed for whatever reason). The problem is that he has no idea what his user name and passwords are. So I would like to re-install a fresh OS and setup the mac mini. It is not the first time, that I do this, so I do press for sure the right keys while starting up. I tried booting the system holding down the apple key + r without success. The system will boot into the primary installation. With Command + Apple + r it is the same. I can reset VRAM using Command Command + Apple + r + p and I hear the chime sound. Pressing any other combinations doesn't let me hear any sounds. So I wondered and created a bootable stick with MAC OS Sierra on it. Just to make sure my old mac mini can handle it. While booting up and pressing command I can choose between the installed Versions of MAC OS or install Sierry from USB. ![]() When I choose to install from USB the Mac Mini will simply boot into the installed Mac OS. Best email for apple users. I remember that on an old windows PC I wasn't able to install from USB even though he recognized the USB Stick. I had to do that from DVD / CD. What do you think, do I have to use a DVD/CD to finally install any OS? Since I don't don't have the option to burn a disc here I wasn't able to try out yet. Maybe there is another solution? First step is to erase the non volatile ram (used to be called PRAM) by holding Command-Option-P-R and listen for two boot chimes in a row then release the keys and try the install.
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