Mac OS X Turns 20: A Look Back at the Operating System That Helped Save Apple OS X may be retired, but it deserves to be remembered. Take a trip back with these 14 key milestones in the double-decade history of the operating system that helped transform a nearly bankrupt Apple into a trillion-dollar company. Why downgrade macOS Big Sur. Big Sur is a great update to the Mac operating system (read our Big Sur review), with some useful features and some iOS inspired changes.However, as with Catalina. How to manage a failed OS X Mavericks installation. If your attempts to install OS X Mavericks are not working or have your system stuck, then here are some quick steps to take to get up and running. So, before you clean your Mac (running on macOS Big Sur or earlier till Mac OS X El Capitan), click the Time Machine icon from the menu bar and select Back Up Now to back up your start-up disk. Wait till Time Machine performs incremental backup of your Mac hard drive or SSD. Next, go through the various methods below to achieve the Mac clean up.
How to start up in macOS from Windows
Proceeding Back Mac Os Download
- From the notification area on the right side of the Windows taskbar, click to show hidden icons.
- Click the Boot Camp icon .
- From the menu shown, choose Restart in macOS.
If you haven't installed the latest Boot Camp updates, you might get the message 'Could not locate the OS X boot volume.'
Or use Startup Manager as your Mac starts up:
- Restart your Mac from the Start menu in Windows.
- Press and hold the Option (or Alt) ⌥ key as your Mac begins to restart.
- Select your Mac startup volume (Macintosh HD) in the Startup Manager window, then press Return or click the up arrow:
Proceeding Back Mac Os Catalina
How to start up in Windows from macOS
- Use Startup Manager to choose your Windows (Boot Camp) volume during startup.
- Or select your Boot Camp volume in Startup Disk preferences, then restart.
Learn more
- From the notification area on the right side of the Windows taskbar, click to show hidden icons.
- Click the Boot Camp icon .
- From the menu shown, choose Restart in macOS.
If you haven't installed the latest Boot Camp updates, you might get the message 'Could not locate the OS X boot volume.'
Or use Startup Manager as your Mac starts up:
- Restart your Mac from the Start menu in Windows.
- Press and hold the Option (or Alt) ⌥ key as your Mac begins to restart.
- Select your Mac startup volume (Macintosh HD) in the Startup Manager window, then press Return or click the up arrow:
Proceeding Back Mac Os Catalina
How to start up in Windows from macOS
- Use Startup Manager to choose your Windows (Boot Camp) volume during startup.
- Or select your Boot Camp volume in Startup Disk preferences, then restart.
Learn more
- If you're having difficulty using VoiceOver or another screen reader to complete these steps, please contact Apple Support.
- Learn how to install Windows 10 on your Mac.
