Download Macos Lion

[Jenette Bregantini]

Apreview of OS X 10.7 Lion was publicly shown at the "Back to the Mac" Apple Special Event on October 20, 2010. It brought many developments made in Apple's iOS, such as an easily navigable display of installed applications, to the Mac, and includes support for the Mac App Store, as introduced in Mac OS X 10.6 Snow Leopard version 10.6.6.[7][8]On February 24, 2011, the first developer's preview of Lion (11A390) was released to subscribers to the Apple Developer program.[9] Other developer previews were subsequently released, with Lion Preview 4 (11A480b) being released at WWDC 2011.[10]

Lion was released to manufacturing on July 1, 2011,[11] followed by its final release via the Mac App Store on July 20, 2011. Apple reported over one million Lion sales on the first day of its release.[12] As of October 2011[update], OS X Lion had sold over six million copies worldwide.[13] Mac OS X 10.7.1 was the last version of Mac OS X released under CEO Steve Jobs. 10.7.2 and later were released under CEO Tim Cook. 10.7.5 added Gatekeeper.[14]

Lion is the first version of macOS that did not support 32-bit processors and is also the final release whose development was overseen by Bertrand Serlet, considered to be the "founding father of Mac OS X".[15]

Although originally paid, Apple later allowed free downloads of the OS, especially for customers of older and no longer officially supported Mac computers, starting on June 30, 2021.[16][17] The same practice was applied to its successor, OS X Mountain Lion.

On June 6, 2011, at the Apple Worldwide Developers Conference, it was announced that the official release for Lion would be in July 2011. The specific release date of July 20 was not confirmed until the day before, July 19, by Apple CFO, Peter Oppenheimer, as part of Apple's 2011 third-quarter earnings announcement.[18]

Apple did not initially announce any physical media distribution for Lion, such as a set of CD-ROMs or a DVD-ROM as used for past releases. Instead, the operating system was said to be available exclusively as a download from the Mac App Store for US$29.99.[19][20] The only prior version of OS X that supports the Mac App Store is Snow Leopard, which implied that any machines that support Lion currently running Tiger or Leopard would first have to be upgraded to Snow Leopard, as opposed to allowing a direct upgrade to Lion.

Apple later announced two alternative distribution mechanisms for the benefit of users without broadband Internet access: in-store downloads at retail Apple Stores, and a USB flash drive containing the OS, priced at US$69, available through the online Apple Store beginning in August.[2] On August 4, 2011, Apple started to take orders for OS X Lion's USB installation flash drives for $69.99.[21]

In July 2012, Lion was removed from the Mac App Store and retail Apple stores following the release of OS X Mountain Lion.[23] Following the removal of Lion from the Mac App Store, customers could still purchase Lion by phone at the reduced price of $20.[24] In October 2013, Lion was returned to the Apple Store website concurrently with Mountain Lion following the release of OS X Mavericks for the convenience of users who cannot run Mavericks on older Mac models.[25]

The first developer preview of Lion added TRIM support for Solid-state drives (SSD) shipped with Macs, which is also included in the latest version of Snow Leopard (10.6.8) shipping with MacBook Pros before July 20, 2011. Other SSDs have built-in TRIM-like optimization, while yet others require OS patching.[26]

Some new features were announced at the "Back to the Mac" keynote in October 2010, and the Apple website was updated in February 2011 with more details. Other features were announced at the WWDC 2011 keynote or on Apple's OS X Lion Web site after the keynote. Apple stated that there were over 250 new or changed features in Lion, including:

Reception for OS X Lion at launch was mixed; complaints include the fact that the normal "save" workflow had been disrupted by the Autosave/Revert workflow.[94] Other highly criticized decisions include the change to "natural scrolling",[95] hiding of the scroll bar,[96] the omission of the iSync program necessary to synchronize a Mac with non-Apple mobile devices,[97] as well as abandoned functionality in Expos[98] and Spaces.[99]

However, in an extensive review of the operating system, Ars Technica recommended Lion.[74] They noted that it feels like it is the start of a new line of operating systems that will continue to be influenced by Apple's iOS platform.[74] The review also compared the introduction of Lion, along with its new conventions that change traditional ways of computing, with the original Mac OS X and when it replaced the classic Mac OS.[74] Macworld stated that Lion was a "radical revision", praising the changes made to the operating system to be more user friendly to new Mac users who are familiar with the iOS interface, while criticizing the limited utility of the interface. Ultimately, the magazine considered Lion an operating system worth getting, giving it 4.5 out of 5 stars.[100] guardian.co.uk called Lion a substantial improvement from its predecessors and considered it a "steal" given its price.[101]

Due to Lion's enhanced security features, including application sandboxing, Dino Dai Zovi characterized Lion's security as "a significant improvement". He also said, "I generally tell Mac users that if they care about security, they should upgrade to Lion sooner rather than later, and the same goes for Windows users, too."[103]

The 10.7.3 update was released with bugs, so Apple removed the standard download from their server and instead recommended that users download the Client Combo update instead, which can fully update a 10.7 system to 10.7.3.[104]

The nerdy looking apple folks in the genius bar are hopeless and I feel I know much more than what they helped! with no concrete solution,they suggested I format my macbook. However, I have never formatted my macbook before (I was a windows native)

As I read in the forums, I took a time-machine backup of my macbook on my portable hard-disk. I now wish to format and re-install OSX Mountain Lion. I dont have any CD/DVD to boot lion. Can anyone please explain me the detailed step-by-step procedure to format and reinstall OSX mountain Lion?

Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.

Boot from your OS X Installer disc. After the installer loads select your language and click on the Continue button. When the menu bar appears select Disk Utility from the Utilities menu. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the installer.

If DU reports errors it cannot fix, then you will need Disk Warrior and/or Tech Tool Pro to repair the drive. If you don't have either of them or if neither of them can fix the drive, then you will need to reformat the drive and reinstall OS X.

Boot from your Lion Recovery HD. When the recovery menu appears select Disk Utility. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported, then click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the main menu. Select Restart from the Apple menu.

For situations Disk Utility cannot handle the best third-party utility is Disk Warrior; DW only fixes problems with the disk directory, but most disk problems are caused by directory corruption; Disk Warrior 4.x is now Intel Mac compatible.

OS X performs certain maintenance functions that are scheduled to occur on a daily, weekly, or monthly period. The maintenance scripts run in the early AM only if the computer is turned on 24/7 (no sleep.) If this isn't the case, then an excellent solution is to download and install a shareware utility such as Macaroni, JAW PseudoAnacron, or Anacron that will automate the maintenance activity regardless of whether the computer is turned off or asleep. Dependence upon third-party utilities to run the periodic maintenance scripts was significantly reduced since Tiger. These utilities have limited or no functionality with Snow Leopard or Lion and should not be installed.

OS X automatically defragments files less than 20 MBs in size, so unless you have a disk full of very large files there's little need for defragmenting the hard drive. As for virus protection there are few if any such animals affecting OS X. You can protect the computer easily using the freeware Open Source virus protection software ClamXAV. Personally I would avoid most commercial anti-virus software because of their potential for causing problems. For more about malware see Macintosh Virus Guide.

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