How to Enable the Root User in macOS
Note: If your computer is set to automatically log you in each time you start it, but you want to log in as another user, hold Shift when the Mac OS X Startup Screen appears and release it when the login screen appears. If you don't have access to an account with administrator privileges, contact your system … Macintosh operating systems - Wikipedia The "classic" Mac OS is the original Macintosh operating system that was introduced in 1984 alongside the first Macintosh and remained in primary use on Macs until the introduction of Mac OS X in 2001.. Apple released the original Macintosh on January 24, 1984; its early system software was partially based on the Lisa OS and the Xerox PARC Alto computer, which former Apple CEO Steve Jobs How to Clear Log Files on Mac OS X, macOS Sierra
The "classic" Mac OS is the original Macintosh operating system that was introduced in 1984 alongside the first Macintosh and remained in primary use on Macs until the introduction of Mac OS X in 2001.. Apple released the original Macintosh on January 24, 1984; its early system software was partially based on the Lisa OS and the Xerox PARC Alto computer, which former Apple CEO Steve Jobs
macOS (/ ˌ m æ k oʊ ˈ ɛ s /; previously Mac OS X and later OS X) is a series of proprietary graphical operating systems developed and marketed by Apple Inc. since 2001. It is the primary operating system for Apple's Mac computers.Within the market of desktop, laptop and home computers, and by web usage, it is the second most widely used desktop OS, after Microsoft Windows.
Problem with your Mac? Check the system logs
How to get System Report and the system.log file in macOS How to save the system.log file on OS X 10.11 In Finder , click Apps → Utilities → Console . In the left part of the Console window, find the Files section and select system.log MAC: Login Password Recovery: Enter your login ID in the field below and click "Send". Your password "Hint" will be emailed to you. ID