After, follow these steps to install macOS: • Choose Reinstall macOS (or Reinstall OS X) from the Utilities window. • Click Continue, then follow the onscreen instructions to choose your disk and begin installation. If the installer asks to unlock your disk, enter the password you use to log in to your Mac. If it doesn't see your disk, or it says that it can't install on your computer or volume, you might need to. • Please allow installation to complete without putting your Mac to sleep or closing its lid. During installation, your Mac might restart and show a progress bar several times, and the screen might be empty for minutes at a time. If your Mac restarts to a setup assistant, but you're selling or giving it away, press Command-Q to quit the assistant without completing setup. Then click Shut Down. When the new owner starts up the Mac, they can use their own information to complete setup. Those who still rely on older Mac OS X operating systems, know these still are going strong. There are so many things you can do with past OS X — like Lion, Mavericks or Yosemite — each one of these operates flawlessly. So if you’re looking to give your Mac a fresh start with just a classic Mac OS X and nothing else, to clean install Mac OS from USB is the best option for you. To clean install Mac OS from USB, there are three things you should do. First, you should clean up your Mac from the old baggage — system files that have piled up over time. Once it’s all cleaned up, the next you should do is backup your newly cleaned Mac. And finally, after doing a backup, you can clean install OS X of your choice from USB. We’ve got the steps outlined below, so let’s get to it. Step 1: Clean system junk on your current Mac OS X Whatever OS X you are currently on, system junk and outdated cache files are a potential source for software conflicts. Having cleaned them up, you may discover around 35 GB of newly created space previously taken by junk. What's more, old caches may interfere with your new Mac OS X installation, so this step is pretty essential. Cleaning can be done either manually or using a dedicated app. If you don’t want to spend the next 20 minutes on repetitive clicking and typing, jump right to the automatic solution further down. The manual way to remove old user caches: • Click on a Finder window and choose “Go to Folder” in the Go menu. Yes, it should work just fine. The only reason Snow Leopard needs the DVD is because the Recovery is not built-in. Lion through El Capitan has the Recovery built-in, and it will reinstall OS X using whatever current version you are on. • Type in ~/Library/Caches and click Enter to go open the folder. • Go through each of the folders and remove their contents. Note: Do not remove the folders themselves, just their insides. Next off, do the same steps, but now replace. ~/Library/Caches with /Library/Caches Automatic solution for system junk cleanup There are many nice apps that offer a quick Mac clean up. Among those, is our favorite as it looks most user-friendly of all. How to make 2 partions on an external hard drive one for windows and one for mac free. It scans your hard drive for old caches, broken apps, and app leftovers so you can remove all unwanted files in a minute or two. After all, a newly installed OS X feels better on a clean computer. Download CleanMyMac and then follow the steps: • Launch CleanMyMac 3. • Click Scan. Adobe acrobat 11 pro key. • Click Remove. And you’re done. If you want to clean up more junk on your Mac, go through each of the modules located on the left panel of the app. It’ll help you clear out gigabytes of junk that you probably didn’t even realize were there. Once you’ve finished the cleanup, head to the next step. Step 2: Back up your Mac Before you begin to reinstall Mac OS from USB, you should back up your Mac. Note: If you don’t do this step, you will not be able to recover files, nor restore anything if something goes wrong.
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