- How to uninstall on macbook os x yosemite how to#
- How to uninstall on macbook os x yosemite archive#
- How to uninstall on macbook os x yosemite iso#
If you booted from a functioning recovery partition, click the “Reinstall macOS” button. With your information wipe complete, you are now ready to reinstall macOS. If you choose three or five passes, you might want to leave this running overnight. The first way is to move the cursor to the bottom of the screen, and then click on the 'System Preferences' option when our dock opens up. We can open the 'System Preferences' panel one of two ways. NOTE: If you get a damaged message when launching, no need to worry. The first thing were going to need to do is to access SwitchResX by opening up our 'System Preferences' panel.
How to uninstall on macbook os x yosemite how to#
Instructions on how to do that are on the Internet/Youtube.
How to uninstall on macbook os x yosemite iso#
A bootable ISO or bootable USB can be made from this installer.
How to uninstall on macbook os x yosemite archive#
Un-archive the zip archive and you will get the app Installer. If you opted to wipe your drive securely, this might take a while-30 minutes to an hour is not unreasonable for one pass. Official OS X Yosemite Installer from the Mac App Store. Just give your drive a name (I recommend “Macintosh HD”, just for consistency’s sake), then click “Erase” to start the overwriting process. You only need to write over a drive once to securely wipe it, but if you’re paranoid you can also wipe it three or five times.Ĭlick “OK” once you’ve decided, but remember: if your Mac has a solid state drive, you do not need to use these options.
Now move the dial up, to randomly write data over your entire drive.
You still need to wipe the drive, however, or your files will remain in place, so skip to the end of this step to do so.) (If your Mac has a solid state drive, you can skip this part: your SSD will already securely erase files thanks to TRIM. If you’re wiping a mechanical drive, click “Security Options” in the window that pops up. Click your primary drive, then click “Erase” If not you can find Disk Utility in the menu bar: click Utilities then Disk Utility. To get started, click the Disk Utility option.ĭepending on how you started Recovery Mode, you may be presented with the option to start Disk Utility right away, as seen above. We’ve shown you how to securely wipe a hard drive with your Mac, and doing so in Recovery Mode isn’t really different from doing so within macOS. If you want a truly clean installation, however, you need to first wipe your hard drive. We recommend backing up files before you do this, just in case, but otherwise you’re ready for step three. Your user accounts and files will stay exactly where they are-only your operating system will be overwritten. If you want to re-install your operating system, but leave your files in place, you can skip this step. RELATED: 8 Mac System Features You Can Access in Recovery Mode Step Two: Securely Wipe Your Hard Drive (Optional) Once you’ve managed to open up the Recovery Mode in some fashion, we can move on to wiping your drive securely. You can access recovery without a partition using Network Recovery: hold Command+Shift+R while turning on your Mac and it will download the Recovery features for you. Failing that, you can create a bootable USB installer for macOS Sierra, and boot from that by holding “Option” while turning on your Mac. If neither of these options work, don’t panic! You’ve got a couple of options yet.
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