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Select Reinstall macOS from the utilities window in macOS Recovery, then click Continue and follow the onscreen instructions. Follow these guidelines during installation: If the installer asks to unlock your disk, enter the password you use to log in to your Mac. If the installer can't see your disk or notifies you that it can't install macOS on your computer or volume, you may need to erase your disk first. The Mac operating system comes with an Archive tool, but it doesn't support every compressed file format out there. StuffIt, on the other hand, can decompress RAR, TAR, GZIP, BZIP, 7zip, MIME. Is available for Linux, Mac OS X, and Windows. Is released under an Open Source license. Is released under an Open Source license. We believe that cyclists should be able to download their power data to the computer of their choice, analyze it in whatever way they see fit, and share their methods of analysis with others.
How to access and use the Internet Recovery mode on Mac computers?
Apple computers are well-known as stable devices with good performance and hardware specifications. The Mac operating system also includes various self-diagnosis and repair tools. Bear in mind, however, that these features might be susceptible to failure. When built-in tools or software-based solutions do not work, the last and most efficient solution is to reinstall the operating system. All modern Mac computers contain two separate methods to reinstall the operating system (by 'reinstall', we mean installation of a fresh OS X version). You can choose to install the operating system from a startup disk or via Internet Recovery.
In this article, we describe the second method: Internet Recovery to install the operating system version that came with the version of your computer. If your computer was released with OS X Mavericks, using Internet Recovery will install this particular version, while reinstallation from the recovery partition will result in a fresh version of the current operating system. Therefore, if you perform the reinstallation process via the Recovery utility, you will receive the same operating system version that existed prior to reinstallation. The Internet Recovery method is useful if you wish to downgrade the operating system. A big advantage of this method is the ability to bring back the computer to full functionality when software is corrupted. Note, however, that stable internet access is required to perform the reinstallation process via Internet Recovery. An unstable Internet connection can lead to the process crashing and no access to the computer. Therefore, you are advised to use an Ethernet network, rather than Wi-Fi. In this article, we walk through the entire Internet Recovery method.
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Requirements to access Internet Recovery Mode
Ensure that the Mac meets the minimum requirements to access Internet Recovery mode. All compatible computers are listed below. Bear in mind that some earlier versions of Apple devices might also use this feature. Apple state that Firmware updates grant access to Internet Recovery mode. If your device is older than the machines listed below, check the Apple firmware updates list here.
- MacBook Pro (13-inch, Early 2011)
- MacBook Pro (15-inch, Early 2011)
- MacBook Pro (17-inch, Early 2011)
- iMac (21.5-inch, Mid 2011)
- iMac (27-inch, Mid 2011)
- MacBook (13-inch, Mid 2010)
- MacBook Pro (13-inch, Mid 2010)
- Mac mini (Mid 2010)
- MacBook Pro (15-inch and 17-inch, Mid 2010)
- iMac (21.5-inch and 27-inch, Mid 2010)
- MacBook Air (11-inch and 13-inch, Late 2010)
If you wish to reinstall the Mac operating system, your network must use DHCP and WPA/WPA security methods. All authentication methods listed below are incompatible with macOS installation via Internet Recovery. If your network uses one of the methods listed, change the setting to a compatible configuration (at least for the purpose of the installation process).
- WEP
- WPA-Enterprise
- Certificate-based authentication / 802.1x
- Proxies (where specific proxy servers must be configured in network preferences)
- Captive Wi-Fi networks (where you click an “Agree” button to access the Internet)
- PPPoE (where there is no router handling the PPPoE connection)
Reinstall operating system by using Internet Recovery mode
When you are sure that the Mac is able to access Internet Recovery mode, there is another important task before installing the fresh operating system version. After a successful reinstallation process, the computer will contain only the default software (which is delivered with macOS). All personal data and applications that you have manually applied to the hard disk will be erased. To protect your personal data, create a backup with Time Machine or similar software. Finally, when you are ready to reinstall the operating system, click the Apple logo in the menu bar at top of the screen and select Restart or Shut Down. Once the system starts booting and you hear the startup chime, hold down the combination of Command, Option (Alt), and R.
Keep holding these keys until the animated globe appears with the message below stating 'Starting Internet Recovery' and 'This may take a while'. Note: If you are using a Mac laptop, use the built-in keyboard to access Internet Recovery Mode, since keystrokes might not register properly on external keyboards.
Next, select the Wi-Fi network. If you are not using an Ethernet network, click the drop-down menu and select the desired network. You must confirm access to a Wi-Fi network by entering the password. Then press Return on the keyboard or click the checkmark symbol on the screen to continue.
After successful authentication to achieve the network connection, the Mac will begin to download a recovery system image from Apple's servers. You will see a progress bar monitoring the status of the download. Depending on your internet connection, this process may take some time. Ensure that the computer is connected to the power adapter.
When the image is downloaded, the OS Utilities window will pop-up, giving access to the usual features, such as Restore from Time Machine Backup, Reinstall OS X, Get help online, and Disk Utility. From this point, the process will be similar to the reinstallation via recovery partition. Detailed information about how to install the macOS can be found in this article.
There’s nothing like that “fresh Mac” feeling, when everything is clean and running like new. A healthy Mac boosts productivity by working well and eliminating down time. How to achieve this wonderful state? There are three ways.
First, buy a brand-new Mac. It’s not the most economical option, but there it is. Second, perform a clean install of OS X. While buying a new Mac is expensive financially, a clean reinstall costs you time, as it’s a tricky process that requires attention and careful preparation. That brings us to number three.
The third option is more economical, safer, significantly simpler and comes in two parts. First, reclaim disk space by removing unwanted, troublesome files and two, perform routine maintenance to keep your Mac in tip-top shape. A utility like CleanMyMac X lets you do all of that quickly, effectively and best of all, without having to clean reinstall OS X.
In this article you’ll learn how to clean up your Mac and get it running beautifully. But first, I’ll look at performing a clean installation for those interested in that route. It’s burdensome, but possible. Here’s what you need to know about performing a fresh install of OS X.
Clean up your Mac with a fresh install — the drastic way.
The dark pigeon mac os. Apple designs its Mac operating systems so that they can be installed “over the top”, which means all settings and user accounts will remain intact when you upgrade. For most people this works just fine, and is the recommended method. Those who still wish for a clean install must recognize that this means everything will be erased from their hard drive:
![Mac Mac](https://s3.manualzz.com/store/data/033974046_1-9d57edfa54380342f86ca1e52f06fb10-768x994.png)
- The boot drive.
- User accounts.
- Your network settings and all software licenses.
- Photos, music, and documents.
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That’s “everything” as in every last thing. If you’re still game, here’s what you need to know before doing a clean install of OS X El Capitan.
- This probably goes without saying, but make reliable backups of your entire boot drive in several ways.
- Move important files to an online storage service like Dropbox plus a local external drive.
- Note what has been backed up to your iCloud account, if anything, as well as how to recover it.
With that done, you certainly can perform a clean install of OS X. Set aside a Saturday that you can devote to the task. We, however, recommend less drastic measures. Forget risky reinstallation and see the difference a cleaner Mac can make.
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Clean up your Mac with a cleaner app — the easy way.
Broken preference files, login items and even unneeded language files can accumulate on your computer’s drive. Most of these you won’t even see, so looking through you Mac’s folders won’t necessarily yield the junk you’re after. Fortunately, CleanMyMac X has five modules dedicated to the areas of your Mac that often accumulate bulky files:
General system junk - There’s so much potential for bulky, hidden files here, including language files, OS X localizations, cache files and logs.
Mail attachments - When you open or view a new attachment in Mail, the application stores a copy on your disk and keeps it until you delete the associated email. After a while, the total volume of copied files may reach a couple of gigabytes or more. Clean the local copy while keeping the original on your email server intact.
iTunes junk - Outdated iOS backups and iOS updates can take up huge amounts of space. Since they're out of sight, they’re out of mind. CleanMyMac locates and deletes these files safely and easily.
Photo junk - RAW originals can be replaced with high-quality JPEG alternatives, while Photos’ “Faces” caches and other photos caches are cleaned up.
Last but not least is the Trash bin. It’s so easy to forget about items in thrash. I’ve certainly done it, only to later discover I’ve got a GB or more just sitting in there! Download CleanMyMac for free and try it for yourself to see how easily it accomplishes all of this and more, including regular maintenance.
Bonus: regular maintenance to keep your Mac like new
The other key to a Mac that’s happy and healthy is regular maintenance. CleanMyMac’s Maintenance module provides access to all sorts of optimization goodness. Quickly run essential scripts and procedures that will keep your Mac in great shape for a long time, and prevent lag under high workloads. To find them, simply launch CleanMyMac and click the Maintenance icon.
The first option you’ll find is Run Maintenance Scripts, which are basic system routines — written by Apple — that OS X runs on a daily, weekly, and monthly basis. They aim to keep your Mac in shape, and now you can run them whenever you like.
Repair disk permissions and verify the startup disk to maintain your file system to optimize performance. For example, if you notice misbehaving apps, repair disk permissions. Note, that manual way to repair disk permissions via Disk Utility has been disabled since El Capitan. But if you're running Mavericks or Yosemiti, it's still possible. Got to Utilities in your Mac’s Applications folder and launch Disk Utility. Next, click First Aid .
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Additionally, rebuild launch services. Finder uses the Launch Services database to keep information about file types and applications assigned to open them by default.
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As you install, remove, or update applications, the database may become corrupted and cause some troubles with opening applications or with displaying correct contents of the Open With menu. Use the Rebuild Launch Service Database task to resolve these issues.
Get that “fresh Mac feeling” yourself with CleanMyMac X. While it’s admittedly not as fun as unboxing a brand new Mac, it’s fast, effective and a lot less terrifying that wiping your drive clean, crossing your fingers and starting from scratch. Try it for free and see the difference a clean Mac can make. Grab it now and get cleaning. Nola is burning mac os.