How to install a fresh copy of OS X on your Mac
- Shut down your Mac.
- Press the Power button (the button marked with a O with a 1 through it)
- Immediately press the command (cloverleaf) key and R together.
- Make sure you’re connected to the internet through Wi-Fi.
- Select Install Mac OS X, then click Continue.
- Wait.
Índice de contenidos
How do you reinstall the operating system on a Mac?
How to reinstall macOS while in Recovery mode
- Click Reinstall macOS.
- Click Continue.
- Click Continue.
- Click Agree.
- Click Agree.
- Click on the drive on which you wish to install macOS.
- Enter your Apple ID and password if you’re asked to, though you might not be.
- Click Install.
How do I do a clean install of OSX?
So, let us begin.
- Step 1: Clean up your Mac.
- Step 2: Back up your data.
- Step 3: Clean Install macOS Sierra on your startup disk.
- Step 1: Erase your non-startup drive.
- Step 2: Download the macOS Sierra Installer from the Mac App Store.
- Step 3: Start the Installation of macOS Sierra on the Non-startup drive.
How do I install an older version of Mac OS?
Here are the steps Apple describes:
- Start up your Mac pressing Shift-Option/Alt-Command-R.
- Once you see the macOS Utilities screen choose the Reinstall macOS option.
- Click Continue and follow the on-screen instructions.
- Select your startup disk and click Install.
- Your Mac will restart once the installation is complete.
How do I reload my Mac operating system?
It is the easiest way to install a fresh copy of an operating system.
- Connect your Mac to the internet via Wi-Fi or Ethernet.
- Click on the Apple icon in the upper left corner of your screen.
- Select Restart from the drop-down menu.
- Hold down Command and R (⌘ + R) at the same time.
- Click on Reinstall a new copy of macOS.
How do I reinstall Mac OS without recovery mode?
Restart your Mac while holding down the ‘Command+R’ buttons. Release these buttons as soon as you see the Apple logo. Your Mac should now boot into Recovery Mode. Select ‘Reinstall macOS,’ and then click ‘Continue.’
How long does it take to reinstall Mac OS?
Depends on what kind of Mac you have and method of install. Typically, if you have a stock 5400 rpm drive, it takes about 30 – 45 minutes using a USB installer. If you are using the internet recovery route, it can take over an hour, depending on speed of internet etc.
Is Mac OS Sierra still available?
If you have hardware or software that isn’t compatible with macOS Sierra, you might be able to install the previous version, OS X El Capitan. macOS Sierra won’t install on top of a later version of macOS, but you can erase your disk first or install on another disk.
How do I do a clean install of OSX Mojave?
How to Clean Install MacOS Mojave
- Complete a full Time Machine backup before starting this process.
- Connect the bootable macOS Mojave installer drive to the Mac via a USB port.
- Reboot the Mac, then immediately start holding the OPTION key on the keyboard.
How do I make a bootable USB for Mac?
The Easy Option: Disk Creator
- Download the macOS Sierra installer and Disk Creator.
- Insert an 8GB (or larger) flash drive.
- Open Disc Creator and click the “Select the OS X Installer” button.
- Find the Sierra installer file.
- Select your flash drive from the drop-down menu.
- Click “Create Installer.”
How do I start my Mac in recovery mode?
How to enter Recovery Mode. 1) In the Apple menu choose Restart, or power on your Mac. 2) As your Mac restarts, hold down the Command (⌘) – R combination immediately upon hearing the startup chime. Hold the keys until the Apple logo appears.
What is the latest Mac OS?
Versions
| Version | Codename | Most Recent Version |
|---|---|---|
| OS X 10.11 | El Capitan | 10.11.6 (15G1510) (May 15, 2017) |
| macOS 10.12 | Sierra | 10.12.6 (16G1212) (Jul 19, 2017) |
| macOS 10.13 | High Sierra | 10.13.6 (17G65) (July 9, 2018) |
| macOS 10.14 | Mojave | 10.14.4 (18E226) (March 25, 2019) |
15 more rows
How do I reinstall Mac OS after wipe?
Reinstall from macOS Recovery
- Decide whether to erase (format) your disk. If you need to erase your disk before installing macOS, select Disk Utility from the Utilities window, then click Continue.
- Install macOS. After starting up from macOS Recovery, follow these steps to install macOS:
Will reinstall macOS erase data?
Technically speaking, simple reinstalling macOS won’t erase your disk either delete files. You probably don’t need to erase, unless you’re selling or giving away your Mac or having an issue that requires you to wipe.
How do I reinstall Mac from recovery partition?
Reinstall Mac Operating System From The Recovery Partition
- Turn on the Mac and immediately press and hold down both the Command key and the R key.
- Once you see the Apple logo appear in the middle of the screen you can release the Command and R keys.
- When the Mac has completed its startup, you should see a window similar this one:
How do I reinstall Mac OS without Apple ID?
1 Answer
- With Mac off Hold CMD + R and tap power button to turn on computer.
- Still holding CMD + R wait for recovery screen to appear that gives reinstall option.
- Before clicking reinstall click ‘disk utility’
- On disk utility click the ‘Macintosh HD’ then the erase tab on the right.
How long does macOS High Sierra take to install?
Here’s How Long the macOS High Sierra Update Takes
| Task | Time |
|---|---|
| Backup to Time Machine (Optional) | 5 minutes to a day |
| macOS High Sierra Download | 20 minutes to an 1 hour |
| macOS High Sierra Installation Time | 20 to 50 minutes |
| Total macOS High Sierra Update Time | 45 minutes to an hour and 50 minutes |
How can I install Mac on Mac?
How to install a fresh copy of OS X on your Mac
- Shut down your Mac.
- Press the Power button (the button marked with a O with a 1 through it)
- Immediately press the command (cloverleaf) key and R together.
- Make sure you’re connected to the internet through Wi-Fi.
- Select Install Mac OS X, then click Continue.
- Wait.
How long does it take to install Mojave on iMac?
This is how long macOS Mojave takes to install. The macOS Mojave installation should take about 30 to 40 minutes if everything works right. This includes a speedy download and a simple install with no issues or errors.
How do I format a bootable USB drive on a Mac?
Open the Disk Utility app. Select the USB drive and click the Erase button. Choose the Name as Untitled, Format as OS X Extended (Journaled) and select Scheme as GUID Partition Map. This option is used for all Intel-based Mac computers.
Can you create a Windows bootable USB on 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. Insert a USB flash drive to your Mac. Check the box for “Create a Windows 7 or later version install disk” and deselect “Install Windows 7 or later version.”
How do I create a bootable USB drive?
Create a bootable USB with external tools
- Open the program with a double-click.
- Select your USB drive in “Device”
- Select “Create a bootable disk using” and the option “ISO Image”
- Right-click on the CD-ROM symbol and select the ISO file.
- Under “New volume label”, you can enter whatever name you like for your USB drive.
What is Mac OS Internet recovery?
The utilities in macOS Recovery help you restore from Time Machine, reinstall macOS, get help online, repair or erase a hard disk, and more. macOS Recovery is part of the built-in recovery system of your Mac.
Could not find installation information for this machine?
If you are installing mac os on a fresh Hard Drive then rather pressing cmd + R on startup, you need to press and hold only alt/opt key on system startup. In Recovery Mode you have to format your Disk using Disk Utility and Choose OS X Extended (Journaled) as drive format before you click Reinstall OS X.
How do I reinstall OSX without losing data?
How to Update & Reinstall macOS Without Losing Data
- Start up your Mac from macOS Recovery.
- Select “Reinstall macOS” from the Utilities Window and click “Continue”.
- Follow the onscreen instructions to select the hard drive you want to install the OS on and start the installation.
- Don’t put your Mac to sleep mode or close its lid during the installation.
Photo in the article by “Wikimedia Commons” https://commons.wikimedia.org/wiki/File:MacOS_Mojave_wordmark.svg
