CLEAN FOR SIERRA FOR MAC OS X

You can create a bootable macOS High Sierra install disk by. Step 2: Create a Bootable macOS High Sierra Installer. Make sure that you have access. As noted, weвЂ™re going to completely erase everything on the Mac. How to Perform a Clean Install of macOS High Sierra Step 1: Backup Your Mac.

Or worse yet a malicious security threat or connections to their old account. Sellers sometimes just delete their documents, leaving poorly configured and obsolete apps lying around. Or has a Mac preloaded with OS X Mavericks, Yosemite, El Capitan, macOS Sierra.All too often IвЂ™ve seen people buy a used Mac only to find that the seller did not properly erase the Mac first. Here itвЂ™s time to set up and performing a clean installation of macOS Sierra.I encountered may problems while I was trying to install mac OS Sierra. Now in the previous steps, if you have installed macOS Sierra from the USB Installer to the partition that you created for macOS Sierra 10.12, then after booting from that partition that macOS Sierra is installed on it. If you havent yet upgraded to macOS Sierra or later, learn about other ways to free up storage space.Updated December 2, 2020: added information for new Macs with Apple processors.Perform a clean Installation of macOS Sierra.

Go to iFinder and uninstall all the unrecognized apps and drag the files into A combination of Command and Q can be convenient for you as keyboard shortcuts when the macOS High Sierra has been affected by malware. Quit the web browser immediately. If you are selling or recycling your Mac, none of your personal information remains1.

When we are done the only thing left will be a squeaky clean computer as good as from the factory. Many of these things are saved to iCloud but not necessarily. Photos, contacts, documents, application installers, etc. If you have anything on this Mac that you want to keep youвЂ™ll want to back it up. Back up any dataThese steps will completely and irrecoverably erase everything on your Mac. You can find that in the Apple menu > About This Mac.

In particular, youвЂ™ll want to: Log out of your accountsThis isnвЂ™t strictly necessary but it will remove one of your five allowed iTunes authorizations and will remove the computer from your iCloud account. If youвЂ™re planning to simply recycle the computer it doesnвЂ™t matter so you can skip this.You can view my reference chart to see what version of macOS you can run, and where to get each version. ItвЂ™s better to do an upgrade and then erase rather than an erase and then upgrade.

Deactivate any third party software that has a limited number of authorizations. Log out of FaceTime (similar to logging out of iMessage). Log out of iMessage (open iMessage, click the iMessage menu, click the Accounts tab, click the iMessage account on the left column, and then click the button to sign out) Log out of iCloud (in the Apple menu > System Preferences > iCloud), if prompted you can delete the local data, since you have all of this in iCloud already. You only need to do it for Music or Apple TV, not both.

Press the power button to turn the Mac back on and immediately press and hold the Command + R keys on your keyboard Click the Options icon then click ContinueFor macOSВ 10.7 or higher with an Intel processor Press and hold the power button until you see icons For macOS 11 or higher with an Apple processor You donвЂ™t want to accidentally erase an external hard drive. Instructions for this will vary depending on the specific software.Be sure to remove all devices from your computer except for necessary items like the mouse and keyboard.

Clean For Sierra For Mac OS X

If you donвЂ™t have your disc you may need to upgrade the system software to a newer version first and then try again. For Mac OS X 10.6 and lowerYouвЂ™ll need to boot using a Mac OS XВ disc. You can release the keys when you see the globe, then choose your WiFi network when prompted. Follow any prompts such as entering your WiFi password or choosing your languageShortcut: If you are running macOS 10.13 High Sierra or later and you want to install the latest OS your computer supports rather than the currently installed OS, use Command + Option + R instead.

Use your arrow keys on your keyboard or your mouse to select the install disc (it could take up to a minute to appear) Release the Option key when you see the boot selector Press the power button to turn the Mac back on and immediately press and hold the Option key on your keyboard With the computer powered on, insert your Mac OS X install disc or the recovery disc that came with your Mac

In the terminal window type resetpassword and then press return Click the вЂњUtilityвЂќ menu on the top of the screen and choose вЂњTerminalвЂќ Use the WiFi icon in the upper right corner of your screen to connect to WiFi if you are not already

A single pass is good enough for most people. Each pass takes about two hours depending on the speed of your drive. If you want to destroy sensitive data, click the вЂњSecurity OptionsвЂќ button andВ choose the level you want to run. Depending on your OS version this will either be on the top button bar or on a tab to the right.

Otherwise make sure it says вЂњMacOS Extended (Journaled)вЂќ. If the Format is listed as APFS, leave it as is. If you have an SSD or Fusion Drive you may not have this button because a standard erase is far more destructive.

If it fails pretty much immediately just try again. A secure hard drive erase can take hours. Erasing an SSD or an insecure erase takes just a few seconds.

Click the button to reinstall the OS and follow the prompts. Make sure you are connected to your WiFi network by clicking the WiFi icon in the upper right corner of your screen. Press Command-Q to shut down if you are just disposing of the computer, otherwise continue on to install the OS.If you are onlyВ recycling the computer and donвЂ™t need to prepare it for another user you can skip this step and shut down your computer by pressing Command-Q. Close Disk Utility with the red dot button. If it runs for a long time and then fails, you may have a bad hard drive.

The download is about 6 to 8 GB. It usuallyВ takesВ 30 to 60 minutesВ on a cable or fiber connection, or it could take 6 to 12 hours on a DSL connection. Fast internet connection: this will downloadВ the OS from the internet. The next time the Mac is turned on the new user will be greeted with the same welcome screen.

Or just try it and see if it works. If you are unsureВ click the WiFi icon in the top right corner of your screen while holding the вЂњOptionвЂќ key.В In light grey lettering you will see your current security type. Compatible network connection:В Most home and small business routers since about 2005 should have the appropriate configuration by default. If the currently installed OS is not on your purchase list you must upgrade to at least macOS 10.12 and then do the full erase, or solicit the account of someone who does have the currently installed version in their account. Check this inВ the Apple menu > App Store > Purchased.

a connection that requires a proxy to be configured. WiFi with certificate-based encryption, or captive WiFi connection (one where you get a popup on connecting such as at a coffee shop or library),

Clean Mac For Sierra