Disable startup programs. This makes booting your Mac a simple and pleasant experience, but can also hamper troubleshooting efforts. Once your Mac is running in Safe Mode, some applications will no longer be available.
If everything goes properly, your Mac will boot to its normal desktop.
The Best Tech Newsletter Anywhere Join 250,000 subscribers and get a daily digest of news, geek trivia, and our feature articles. It clears through your junk before it can impact on your system, but if your macOS is starting to lag it might be time to perform a full clean-out of those unused applications.
From here, you can choose to boot from different connected hard drives, USB flash drives, network locations, and other boot devices. Not Helpful 0 Helpful 0.
Edit Related wikiHows. As good as new. Your Mac may also be starting from internet recovery, which uses a PXN network to download damaged boot files. When you boot in Safe Mode, your Mac will check its startup volume, only load necessary kernel extensions, and disable third-party fonts and startup options.
Running your macOS in Safe Mode is normally used to troubleshoot glitches that you have noticed, such as lag, crashing, or spontaneous closures of applications.
To diagnose your Mac more precisely, we recommend performing a full scan with some dedicated Mac cleaning app. If a behavior in a program is reproducible in a regular boot but not in safe mode, the behavior might be related to one of the following: Restart or turn on your Mac while holding down the "Shift" key.