![]() Luckily, Rufus already creates a EFI USB stick which works fine with most UEFI firmwares, so you don't have to boot in legacy mode. The UEFI is often configured in such a way that it is not possible to directly boot software from a legacy USB stick. Modern computers run a Unified Extensible Firmware Interface (UEFI). Make sure that there is no important data on your USB stick because it will get deleted during the process.Īllow your computer to boot from USB sticks Just download the latest Rufus release and latest ShredOS release to create a bootable USB stick with ShredOS. ![]() With Rufus you can install ShredOS on your USB stick and make it bootable. ShredOS is a great and minimalistic OS which incorporates nwipe and lets you get started right away. To accomplish this task, you can boot an operating system from a USB stick. To be able to wipe the operating system from your hard drive, you must first start another operating system running on another drive. If you want to delete your primary hard disk it often includes deleting your operating system as well. Install software onto a bootable USB stick Nwipe offers great deletion algorithms and can be booted from a USB stick through ShredOS. There is, for example, the Samsung SSD Magician Software which offers a "Secure Erase" functionality only for certain Samsung SSDs or Microsoft's Surface Data Eraser which has been designed for Surface devices and requires a 1.4 GB download.įortunately, there is also very good free wiping software such as nwipe (just 6 MB in size). Many applications are either paid solutions, have a limited number of applications, or cannot run on all devices. The variety of hard drive erasing tools makes it difficult to make a choice. In this article, I am showing you how to nuke all of your data according to such a standard.ĭownload a free and versatile erasure software There are several data erasure standards, like the DoD 5220.22-M from the American Department of Defense, that define how data is securely deleted. In order to guarantee irrevocable deletion, it is recommended to erase the entire contents of your disk and overwrite it several times with random data. Simply deleting your sensitive files via the system menu is often not sufficient as professional data recovery tools may be able to restore them. Even if it's the old and slower internal drive.When selling your computer or returning it to your employer, then you should make sure to securely erase the data of your hard drive to prevent unauthorized access to it. You ALWAYS want to maintain a SECOND bootable drive for emergencies.ĪLWAYS. You can use CCC at regular intervals to do an "incremental cloned update" to the internal drive, thus "keeping it the same as" the external boot SSD. I recommend that you used the internal drive as your new "backup" to the external SSD. Once you get logged in, go to "about this Mac" (Apple menu) and check to see that you are booted from the SSD. Now select the external SSD as the new boot drive.ĭo things go a little faster now? (they should). When done, quit CCC and open the startup disk preference pane. RIGHT BOX - scheduling, you can IGNORE this one. MIDDLE BOX - this is for your target (the SSD) LEFT BOX - this is for your source (the internal drive) ![]() You want to download THE CORRECT VERSION for the version of the Mac OS that you're using. NVMe drives are falling in price, but between the drive, the bidirectional adapter, and maybe something to power the drive, this could be an expensive option. A TB3 NVMe drive is the fastest single non-RAID drive you can get for you Mac. Depending on the set up, could require a TB3 dock to power the drive. TB3 - Requires Apple bidirectional adapter. They tend to be pricey, but you could see speeds close to 800MBps on the NVMe TB2 drives that I have researched before. You can also find some NVMe and AHCI TB2 SSD enclosures. ![]() TB2 - Basically the same as the TB1 drive on your iMac. I have gotten TB1 drives with HDDs in them on eBay, and swapped the HDD for SSD. Hard to find these drives, and eBay would probably be the best way to source them. TB1 - A SATA SSD would be about the same speed as a USB3 SSD, but you get TRIM support. This is the cheapest option, but has the downsides of not having TRIM support and not as fast as an internal SSD or external TB2 and TB3 drives. Will feel much faster than the internal HDD (if that is what you have). USB3 - Probably the best option for most people. SD Card - SD cards are expensive, and not worth it imo, unless you already had one. Here are your external options for the Late 2012 iMac: I have used multiple types of external drives with them, as well as replaced the internal drives. ![]()
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