OS (Operating Systems) Apple OS X Updated September 15 2024
Apple OS X Versions:
VersionNameDate
14.0Sonoma2023-XX
13.1Ventura2022-10
12.6.2Monterey2021-10
11.7.2Big Sur2020-11
10.15.7Catalina2019-10
10.14.6Mojave2018-09
10.13.6High Sierra2017-09
10.12.6Sierra2016-09
10.11.6El Capitan2015-09
10.10.5Yosemite2014-10
10.9.5Mavericks2013-10
10.8.5Mountain Lion2012-07
10.7.5Lion2011-07
10.6.8Snow Leopard2009-08
10.5.8Leopard2007-10
10.4.11Tiger2005-04
10.3.9Panther2003-10
10.2.8Jaguar2002-08
10.1.5Puma2001-09
10.0.4Cheetah2001-03
https://en.wikipedia.org/wiki/Template:MacOS_versions
https://support.apple.com/en-us/HT201260

Apple OS X Startup Shortcut Keys: If using a Windows Keyboard, the Windows key is used instead of the Command key, and the Alt key is used instead of the Option key.
Keys Action/Result
Option Pick your startup device
D Run Diagnostics on hardware from local machine
Option-D Run Diagnostics on hardware, downloaded from internet
Command-R System Restore
Command-Option-R System Restore via Internet
Command-Option-P-R Reset PRAM
Command-S Terminal Window
Scan filesystem for issues (repeat several times):
fsck -fy
https://support.apple.com/en-us/HT201255

Free up disk space on OS X
OS X Mail Folders are not alphabetical
Reset Apple Computer Password
Spaces - Have multiple windows in same desktop instead of multiple



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