Mac OS X - Download Mac OS 10.5 & Older - Download Windows - Download Linux - Download. Support Materials. Getting Started Guide - Download Scratch Cards - Download. The Offline Editor can update itself (with user permission). It will check for updates at startup or you can use the 'Check for updates' command in the file menu. Rane devices may not connect after installing Scratch Live 2.4.4 and above on Mac Rane Hardware not detected on Mac OS X Snow Leopard 10.6.0 - 10.6.5 Reinstalling your Kernel Extension file for Scratch Live (Mac) Renaming/moving crates while importing files Scratch Live DJ-FX 101. Mac OS X - Download Mac OS 10.5 & Older - Download Windows - Download Linux - Download. Support Materials. Starter Projects - Download Getting Started Guide - Download Scratch Cards - Download. The Offline Editor can update itself (with user permission). It will check for updates at startup or you can use the 'Check for updates.
Reinstall from macOS Recovery
macOS Recovery makes it easy to reinstall the Mac operating system, even if you need to erase your startup disk first. All you need is a connection to the Internet. If a wireless network is available, you can choose it from the Wi-Fi menu , which is also available in macOS Recovery.
1. Start up from macOS Recovery
To start up from macOS Recovery, turn on your Mac and immediately press and hold one of the following sets of keys on your keyboard. Release the keys when you see an Apple logo, spinning globe, or other startup screen.
Command (⌘)-R
Reinstall the latest macOS that was installed on your Mac (recommended).
Scratch Desktop for PC and Mac. Written by Scratch Foundation. Category: Education Release date: 2019-09-12 Licence: Free Software version: 3.6.0 File size: 194.64 MB Compatibility: Windows 10/8.1/8/7/Vista and Mac OS X 10.10.0. Scratch 2 free download - Scratch, The Sims 2 University Update, Boom 2, and many more programs. System-wide pro audio app for Mac. Free to try Editors' rating. By Download.com staff / October 07, 2009. Essentially a modern version of the program Note Pad that came with the classic Mac OS, ScratchPad is exactly that: a scratch pad. Scratch for mac是一款由麻省理工学院(MIT) 设计开发的一款面向少年的简易编程工具。Scratch mac版针对 8 岁以上孩子们的认知水平，以及对于界面的喜好，MIT 做了相当深入研究和颇具针对性的设计开发。不仅易于孩子们使用，又能寓教于乐，让孩子们获得创作中的乐趣。.
Option-⌘-R
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Upgrade to the latest macOS that is compatible with your Mac.
Shift-Option-⌘-R
Reinstall the macOS that came with your Mac, or the closest version still available.
You might be prompted to enter a password, such as a firmware password or the password of a user who is an administrator of this Mac. Enter the requested password to continue.
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When you see the utilities window, you have started up from macOS Recovery.
2. Decide whether to erase (format) your disk
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You probably don't need to erase, unless you're selling, trading in, or giving away your Mac, or you have an issue that requires you to erase. If you need to erase before installing macOS, select Disk Utility from the Utilities window, then click Continue. Learn more about when and how to erase.
3. Install macOS
When you're ready to reinstall macOS, choose Reinstall macOS from the Utilities window. Then click Continue and follow the onscreen instructions. You will be asked to choose a disk on which to install.
- If the installer asks to unlock your disk, enter the password you use to log in to your Mac.
- If the installer doesn't see your disk, or it says that it can't install on your computer or volume, you might need to erase your disk first.
- If the installer is for a different version of macOS than you expected, learn about macOS Recovery exceptions.
- If the installer offers you the choice between installing on Macintosh HD or Macintosh HD - Data, choose Macintosh HD.
Please allow installation to complete without putting your Mac to sleep or closing its lid. During installation, your Mac might restart and show a progress bar several times, and the screen might be empty for minutes at a time.
If your Mac restarts to a setup assistant, but you're selling, trading in, or giving away your Mac, press Command-Q to quit the assistant without completing setup. Then click Shut Down. When the new owner starts up the Mac, they can use their own information to complete setup.
macOS Recovery exceptions
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The version of macOS offered by macOS Recovery might vary in some cases:
- If macOS Sierra 10.12.4 or later has never been installed on this Mac, Option-Command-R installs the macOS that came with your Mac, or the closest version still available. And Shift-Option-Command-R isn't available.
- If you erased your entire disk instead of just the startup volume on that disk, macOS Recovery might offer only the macOS that came with your Mac, or the closest version still available. You can upgrade to a later version afterward.
- If your Mac has the Apple T2 Security Chip and you never installed a macOS update, Option-Command-R installs the latest macOS that was installed on your Mac.
- If you just had your Mac logic board replaced during a repair, macOS Recovery might offer only the latest macOS that is compatible with your Mac.
If you can't get macOS Recovery to offer the installer you want, you might be able to use one of the other ways to install macOS.
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Other ways to install macOS
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- You can also install macOS from the App Store or Software Update preferences. If you can't install macOS Catalina, you might be able to install an earlier macOS, such as macOS Mojave, High Sierra, Sierra, El Capitan, or Yosemite.
- Or create a bootable installer disk, then use that disk to install macOS on your Mac or another Mac.
CleanMyMac X
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Scratch Mac Os Download
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