The DiskMaker X app allows you to make a bootable OS X installer. I would recommend using a USB drive over a disk if possible, as larger sizes of them are more readily available and also perform faster. You will need to download the OS X Yosemite installer from the Mac AppStore. Download OS X Yosemite 10.10 Retail ISO for free. A Yosemite App Store DMG converted to ISO format. A Yosemite App Store DMG converted to ISO format. I don't really know what to do with this, but you can have it. OS X Yosemite (/ j oʊ ˈ s ɛ m ɪ t i / yoh-SEM-it-ee; version 10.10) is the eleventh major release of OS X (now named macOS), Apple Inc.' S desktop and server operating system for Macintosh computers. OS X Yosemite was announced and released to developers on June 2, 2014, at WWDC 2014 and released to public beta testers on July 24, 2014. Yosemite was released to consumers on October 16, 2014. Mac OS X Yosemiteの再インストール（クリーンインストール）についてご紹介していきます。 早速ですが、お使いのMacの動きが重たいなと感じたり、固まって動きが遅いと感じたときには、新品のMacのように、動くようにしたくなるものです。.
I have a lot of unnecessary stuff, files, etc. that I want to wipe from my computer; all of the important things have already been backed up to USB, and so I want to start my spring cleaning with a spring cleaning of my laptop.
I've looked up how to factory reset, has gotten as far as the Disk Utility, but am unable to actually interact with anything on the Erase tab menu.
Has anybody else come across this issue? Does anybody know any solutions?
I'm running on OS X Yosemite (version 10.10.2), if that affects anything.
MacBook Pro, OS X Yosemite (10.10.2)
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by Shirly Chen, updated on 2016-10-06 to Mac Data Wipe
Data Erasure for Mac OS X 10.10 Yosemite
When we plan to permanently delete some files on our 10.10 Yosemite Mac computers, we should find the reliable data erasure solution for Mac OS X 10.10 Yosemite. The files will not be permanently lost after deletion, emptying the trash bin or formatting the Mac hard drive. Data erasure is critical. If we can't find the reliable solution to erase our sensitive data before selling old Mac computers, it is very dangerous. The cyber criminals can easily recover deleted/formatted data from our devices.
In previous articles, we have talk about how to permanently erase data under macOS Sierra, EI Capitan, etc. Today, we are going to show you an easy solution to permanently erase data under Mac OS X 10.10 Yosemite. If you are using a Mac with OS X 10.10 Yosemite, you can take this solution to destroy your data on your Mac, especially when you are going to resell or donate your Mac computer.
You just need a powerful Mac data erasure tool – DoYourData Super Eraser for Mac. It can help you securely erase data under Mac OS X 10.10 Yosemite without leaving any chance of data recovery. Once the data is erased by DoYourData Super Eraser for Mac, it will be completely destroyed and lost. So you can use it to permanently erase data under Mac OS X 10.10 Yosemite before you sell, donate or throw away your old Mac devices.
Three Options to Erase Data under Mac OS X 10.10 Yosemite
At some time, we only need to erase a few files or folders to destroy our sensitive information. However, in some other cases, we will need to wipe the entire hard drive to destroy all data. DoYourData Super Eraser for Mac gives comprehensive data erasure solutions to help in erasing data under Mac OS X 10.10 Yosemite. It will meet all your needs of data erasure in different situations. It offers three options to let you easily erase data under Mac OS X 10.10 Yosemite.
Option 1: Selectively erase files or folders under Mac OS X 10.10 Yosemite.
This option is designed for destroying specific files or folders on your Mac. Just add files or folders to the list, then click on 'Erase Now' to permanently destroy the selected files/folders under Mac OS X 10.10 Yosemite.
Option 2: Wipe entire hard drive under Mac OS X 10.10 Yosemite.
This option 'Wipe Hard Drive' will complete erase the selected hard drive or storage media under Mac OS X 10.10 Yosemite. It will erase all the existing files and deleted/lost files on the selected hard drive. It is an irreversible process and will completely erase your data.
Option 3: Wipe deleted/lost data on your Mac.
In some cases, you have deleted your files or formatted a hard drive on your Mac. In order to prevent the deleted/formatted data from being recovered by Mac data recovery software, you can use this option to wipe the unused disk space on your Mac to permanently erase the deleted/lost data and disk traces. This option will not erase the existing data on your Mac hard drive.
Erasing data under Mac OS X 10.10 Yosemite can help you avoid data leakage. It also will boost the performance of your old Mac computers.
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