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iMac with Retina 5K display, macOS Sierra (10.12.1)
iMac with Retina 5K display, macOS Sierra (10.12.1)
What is safe mode?
Safe mode (sometimes called safe boot) is a way to start up your Mac so that it performs certain checks and prevents some software from automatically loading or opening. Starting your Mac in safe mode does the following:
- Verifies your startup disk and attempts to repair directory issues, if needed
- Loads only required kernel extensions
- Prevents Startup Items and Login Items from opening automatically
- Disables user-installed fonts
- Deletes font caches, kernel cache, and other system cache files
Together, these changes can help resolve or isolate issues related to your startup disk.
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