How to clean install os x el capitan on imac?

1. Restart the Mac from the bootable installer while holding down the Option key. Select the installer on the USB drive and press Return.
2. If installing to startup drive, select Disk Utility > Continue. Select the drive and choose Erase.
3. Confirm Mac OS X Extended (Journaled) is selected.

Best answer for this question, how do I wipe my Mac and reinstall El Capitan?

1. Restart the computer.
2. Select Disk Utility from the Utility Menu and click on Continue button.
3. When Disk Utility loads select the volume (indented entry, usually Macintosh HD) from the Device list.
4. Click on the Erase icon in Disk Utility’s main window.

You asked, how do I clean my OS X El Capitan?

1. Open a Finder window and select “Go to Folder” in the Go menu, at the top of the screen.
2. Type in ~/Library/Caches and hit “enter” to proceed to this folder.
3. Repeat 1 and 2, but replace ~/Library/Caches with /Library/Caches (simply lose the ~ symbol).
4. Restart your Mac.

Frequent question, how do I wipe my Mac and reinstall OS X?

1. Start up your computer in macOS Recovery:
2. In the Recovery app window, select Disk Utility, then click Continue.
3. In Disk Utility, select the volume you want to erase in the sidebar, then click Erase in the toolbar.

Amazingly, how do I do a clean install of OSX?

1. Step 1: Format the external drive.
2. Step 2a: Get the macOS install file.
3. Step 2b: Get the install file for an older version of macOS.
4. Step 3: Create a bootable USB disk.
5. Step 4: Wipe your Mac.

The best way to restore your Mac to factory settings is to erase your hard drive and reinstall macOS. After macOS installation is complete, the Mac restarts to a setup assistant that asks you to choose a country or region. To leave the Mac in an out-of-box state, don’t continue setup.

How do I restore my Mac to factory settings?

1. Restart your computer: hold the power button > select Restart when it appears.
2. While the computer restarts, hold down the ‘Command’ and ‘R’ keys.
3. Once you see the Apple logo appear, release the ‘Command and R keys’
4. When you see a Recovery Mode menu, select Disk Utility.

Does El Capitan slow down older Macs?

The latest version of Apple’s laptop and desktop operating system OS X 10.11 El Capitan will genuinely speed up your computer, particularly if you’ve got an older Mac. … El Capitan’s brief was pure speed and it is really noticeable, particularly on one-or-two year-old Macs.

Can I upgrade from El Capitan to Sierra?

If you have macOS Sierra (the current macOS version), you can upgrade straight to High Sierra without doing any other software installations. If you are running Lion (version 10.7. 5), Mountain Lion, Mavericks, Yosemite, or El Capitan, you can upgrade directly from one of those versions to Sierra.

Can I install El Capitan on my Mac?

You must have Internet access to complete this procedure. If you’ve never had El Capitan on this Mac, the first thing to do is visit the Mac App Store, download El Capitan (it’s free), and install it.

What do I do if I can’t reinstall OSX?

First, completely shut down your Mac via the Apple Toolbar. Then, hold down Command, Option, P, and R buttons on your keyboard as you restart your Mac. Continue to keep these buttons held until you hear the Mac startup chime twice. After the second chime, let go of the buttons and let your Mac restart as normal.

Does Mac OS reinstall delete data?

2 Answers. Reinstalling macOS from the recovery menu does not erase your data. However, if there is a corruption issue, your data may be corrupted as well, its really hard to tell. … Reinatalling the os alone does not erase data.

How do I reformat a Mac hard drive?

1. Connect the drive to the Mac.
2. Open Disk Utility.
3. Select the drive you want to format.
4. Click Erase.
5. Give the drive a descriptive name and leave the default settings: OS X Extended format and GUID partition map.
6. Click Erase and OS X will format the drive.

How do I install OSX again?

1. Install the latest version of macOS compatible with your computer: Press and hold Option-Command-R.
2. Reinstall your computer’s original version of macOS (including available updates): Press and hold Shift-Option-Command-R.

How do you clean a Mac?

1. Clean up cache. You’ve probably heard “Remove your cache” as a web browser troubleshooting tip.
2. Uninstall apps you don’t use.
3. Clean out useless duplicates.
4. Empty the Trash.
5. Reduce clutter.
6. Delete large and old files.
7. Remove old iOS backups.
8. Wipe out Language files.

How do I select a disk to install OSX?

1. Choose Reinstall macOS (or Reinstall OS X) from the utilities window.
2. Click Continue, then follow the onscreen instructions. You’ll be asked to select your disk. If you don’t see it, click Show All Disks.
3. Click Install. Your Mac restarts after installation is complete.

How do I reset my Mac without losing data?

Step 1: Hold the Command + R keys until the MacBook‘s utility window hasn’t opened. Step 2: Select Disk Utility and click on Continue. Step 4: Select the format as MAC OS Extended (Journaled) and click on Erase. Step 5: Wait till the MacBook is completely reset and then go back to the Disk Utility’s main window.