Mac very slow to startup

The more free space you have, the easier it is for OS X to tweak your disk performance. Get rid of them — move them somewhere else. When your computer first turns on some applications are automatically loaded — drivers and little add-ons. This is a list of all the applications that are set to open when you first boot OS-X. There may be some that you do not need anymore.


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Do a google search to find out what they do first. I had 12 and I paired it down to these 6 which I wanted to keep. This article will help you work out if you have enough memory. Any extra app will use system resources.

7 ways to make your Mac boot faster. - Macintosh How To

There are some other tricks out there but these are the main ones. Not sure which startup items are not necessary. That sounds risky as I am coming from Windows machines exclusively since the time of Windows 3. There may be one eventually but we will know about it — it will be famous!

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Go to these folders in Finder:. Look for anything that is not by Apple, in other words, third party applications. Deleting files from these folders can cause problems unless you are very careful and know what you are doing, so leave them alone. Some apps have options within their preferences to choose whether to automatically start when you log in. Look for these options within apps and disable auto-starting. When the Mac is shut down, macOS provides an option to Reopen windows when logging back in. Is this useful? Not always and reopening all the apps you had open or forgot to close, slows down startup.

If you want to continue working next time, why not just put the Mac to sleep?

Mac Slow Startup? 7 Possible Causes and Fixes

Select Sleep on the Apple menu or just close the lid on a MacBook. There is rarely any need to reopen windows after shutting down. Clear the checkbox.

How To: Fix A Slow Mac

Apps that add items to the menu bar will automatically start with macOS. Each item must be located on the drive, loaded and run. They might then do additional work that requires time and processing power. They start when you log in and spend time scanning for new files and folders and syncing with your online storage.

It can take 10 minutes with very old Macs with mechanical disk drives, but usually less than a minute with new Macs with solid state drives. Most menu bar tools are not as bad as these, but each one adds to the startup time, so unless you absolutely need them, set them not to auto-start.

2. Remove Unwanted Startup Items and Fonts

You might be able to live without them or manually start them if you need them. Do you need antivirus software on your Mac? Gigabytes of files and data can be read and written during startup and FileVault drive encryption can slow down some Macs. If your Mac is very old and if it has a mechanical disk drive, turn off FileVault for maximum speed. It may take hours or even days to completely disable, but you can continue to use the Mac while it decrypts.

On a new Mac with a solid state drive, fast processor, lots of RAM and so on, FileVault encryption may not be noticeable, so there may not be a a great benefit to removing it. Try it with and without and see for yourself. Applications sometimes install items into macOS that can slow down startup. They may add extensions and plugins and other tools.

Finder extensions, Safari extensions, and other items can all affect startup.

Tutorial: Resolving slow startup: Speeding up Mac OS X boot time

Keep checking for updates. This goes to show how software can affect startup times. Other applications could affect startup times, so go through the applications folder and uninstall anything you do not need. For example, printers, scanners, external drives and so on. The Mac might wait for them to start before macOS can finish starting. It sometimes gets in a muddle and needs resetting to fix various problems.