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I purchased a used laptop and would like to know how to wipe the hard drive and reinstall MAC OS X lion 10.7.5 (which is what it came with). This is for a Macbook Pro 13-inch, Mid 2012 with the following: Processor 2.5 GHz Intel Core i5. Memory 4 GB 1600 MHz DDR3. Graphics Intel HD Graphics 4000 384 MB. Mac Os X 10 7 free download - Apple Mac OS X Snow Leopard, R for Mac OS X, Apple Mac OS X Lion 10.7.5 Supplemental Update, and many more programs.

OS X 10.7 Lion was released on July 20, 2011 and made some huge changes to the Mac. Some of these changes were to make it easier for iPhone, iPad, and iPod touch users to adapt to the Mac, some to make the two platforms work better together, and some to keep making the Mac better and better.

Lion was only available by purchase and download from the Mac App Store, where it retailed for US$29.99. You must have OS X 10.6 Snow Leopard installed to purchase, download, or install Lion, and the 4 GB download could take some time with slower DSL connections (we don’t even want to think about how long it would take with dial-up). As a convenience, Apple allowed users to bring their Macs to a nearby Apple Store and use Apple’s WiFi to make the download.

Like OS X 10.6 Snow Leopard, Lion requires an Intel-based Mac, but it goes two steps beyond that. First of all, Lion is a 64-bit operating system, so it won’t work on those 2006 Macs built around 32-bit Core Solo and Core Duo processors. It requires Core 2 Duo or newer, which leaves the following Macs behind unless you update the firmware and install a Core 2 Duo CPU:

Additionally, Lion is the first version of OS X with no support for PowerPC software. Apple introduced Rosetta, which lets Intel CPUs run PowerPC apps, with OS X 10.4 Tiger for the first Intel Macs in 2006, and it had been part of OS X until now.

The last version of Lion, OS X 10.7.5, was released on October 4, 2012. It was the first version of Mac OS X to be part of the annual upgrade program – ever since Lion, Apple has released a new macOS version every year.

Lion was replaced by OS X 10.8 Mountain Lion on July 25, 2012, just a year after Lion first became available. Lion is no longer available for purchase through normal App Store channels, although you may be able to acquire access to it through Apple Support.

Lion is the oldest version of OS X impacted by the “goto fail” bug. See Apple and the ‘goto fail’ Bug for information on securing Lion.

Installation Tip

You can’t just install Lion on any old Mac that support it. The installer’s certificate has expired, so you need to set your Mac to think it’s operating in the past. Using trial and error, I found that setting a date in 2012 will let the installer function. To change your Mac’s date:

1. Open System Preferences.
2. Open Date & Time.
3. If your Mac is set to Set date and time automatically, which is usually the case, disable it.
4. Click on the year and use the down arrow to the right of it to change the year to 2012.
5. Install Lion and make several rounds of updates.

After you complete the process, be sure to set your Mac to the current date and time. Enabling the Set date and time automatically setting is the easiest way to do it.

Lion Links

• The Implications of Losing Rosetta in OS X 10.7 Lion, Charles W Moore, Miscellaneous Ramblings, 2011.05.09. Rosetta lets PowerPC apps run on Intel Macs, but losing Rosetta means that some installers and updaters will no longer run.
• Mac OS X 10.7 Lion Brings Back Useful Features from Apple’s 1983 Lisa, Dan Knight, Mac Musings, 2011.06.07. As I read about Resume, Auto Save, and Versions, one thought kept coming to my mind: Lisa lives!
• Already Addicted to OS X Lion, Austin Leeds, Apple Everywhere, 2011.07.21. After just a few hours use, iPad user Austin Leeds says there’s a lot to love with OS X 10.7 Lion on his MacBook Pro.
• Snow Leopard and OS X 10.7 Lion Backlash, Dan Knight, Mac Musings, 2012.03.05. While OS X and Lion are gaining market share, OS X 10.6 Snow Leopard is also making a bit of a comeback.

Downloadable Updates

Standalone updates let you update to a newer version of Mac OS X from your hard drive instead of using Software Update, which requires an Internet connection. This can be especially helpful if you have more than one Mac that need to have the update installed, since you only have to download it once. Graphpad prism 7 serial number generator mac. Download the one(s) you need and install them after mounting the disk image and launching the Installer program.

There are two types of Standalone Updates: Individual (or Delta) and Combo.

• Individual Updates update one version of Mac OS X to the next version. For example, the Mac OS X 10.7.4 Update updates Mac OS X 10.7.3 to version 10.7.4. Individual Updates are also known as Delta Updates.
• Combo Updates update the base version of a Mac OS X release to the version specified in the Combo Update, including all intermediate updates. For example, the Mac OS X 10.7.4 Combo Update updates any earlier version of Mac OS X 10.7 to Mac OS X 10.7.4 using a single installer, as opposed to installing the individual Mac OS X 10.7.1, 10.7.2, 10.7.3, and 10.7.4 updates.

Standalone Updates are generally available 24 to 48 hours after the Update is available through Software Update.

If you burn a Standalone Update to CD, its disk image must be copied to your desktop or another location on your Mac OS X startup disk in order to be installed.

OS X 10.7.1

OS X 10.7.2

OS X 10.7.3

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OS X 10.7.5

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Mac OS X 10.7 'Lion' Q&A - Published August 19, 2011

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Does Mac OS X 10.7 'Lion' boot in 32-bit mode or 64-bit mode by default? Does it run on Macs with a 32-bit EFI or just Macs with a 64-bit EFI?

As first reported by the well respected hacker, Netkas, the final version of OS X Lion has a Finder that only runs in 64-bit mode. However, OS X Lion does run on a number of Macs that have a 32-bit EFI but that also have a 64-bit processor. It cannot run on Macs with 32-bit processors.

Also see: Which Macs are compatible with Mac OS X 10.7 'Lion'? Which Macs are not compatible? Can incompatible Macs be 'hacked' or upgraded to run Mac OS X 10.7 'Lion'?

How does the performance of Mac OS X 10.7 'Lion' compare to Mac OS X 10.6 'Snow Leopard' in 'real-world' tests?

When Mac OS X 10.6 'Snow Leopard' was released, Apple advertised that it was streamlined and provided a variety of speed 'refinements' compared to earlier versions of the operating system.

By contrast, for Mac OS X 10.7 'Lion,' the company advertises that it provides '250 new features' and makes no mention of performance. For that reason alone, it would be safe to assume that the operating system is certainly no faster than Snow Leopard and even might be slower. However, only 'real-world' tests can confirm or deny this assumption.

In benchmark tests and application use, C|Net's Crave blog hit the iMac 'Core i5' 3.1 27-Inch (Mid-2011) running both Snow Leopard and Lion and 'found only minor speed variations between the two operating systems.'

The Lifehacker blog also found that 'with the exception of the application launching test it seems like there are few differences between the two operating systems' and produced this helpful video to compare boot time, file duplication, web browsing and more:

Ultimately, as the benchmarks and usage tests confirm, OS X Lion is more about new features and multi-touch interaction than speed, but it remains equally quick as its predecessor for most tasks nevertheless.

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