#How to start disk utility on mac how to

This tool can check for your drive and automatically fix the found error on it.īonus: How to Recover Data from Your Mac Computer? Then, select the drive you want to repair and click First Aid to start the diagnosing process. If the machine can boot normally, you should not do anything else but go to Finder > Applications > Utilities to open this tool. You can use the snap-in tool, Disk Utility, to repair the hard drive.įirst, you need to force close and then restart your Mac. If the above methods don’t work for you, you need to consider whether there is something wrong with the hard drive. So, you need to clear up disk space on your Mac. Perhaps, the available free disk space on your Mac is less, making your Mac run slowly almost have no response. No matter your MacBook Air keeps frozen, MacBook Pro has no response, or iMac is not responding, you can use these methods to fix your device.

How to fix a frozen Mac? This part will show you some effective methods. Many factors can cause this problem like low free disk space, insufficient RAM, hard drive failure, old Mac, etc. Case 2: Your Mac Computer Has No ResponseĪnother situation is that your Mac is unresponsive.

#How to start disk utility on mac update

Update the Software Downloaded from the App Store: Another way is to go to the Apple menu > About This Mac > Software Update.Ģ. Go to Apple menu > System preferences > Software Update. To rule out this possibility, you can update both your macOS and software to see whether the issue can be solved. Fix 3: Update Your SoftwareĪn outdated macOS or app can also cause a Spinning Pinwheel of Death. The app will be closed during the process. If the above method can’t help you quit the frozen app, you can just reboot your Mac by going to the Apple menu > Restart. Apple also offers Shift-Command-Option-R, which installs the version of OS X or macOS with which your computer shipped, or the next oldest compatible system still available for download.Tip: This post shows you more methods to force quit an app on Mac: How to Force Quit Mac | 4 Ways to Force Quit an App on Mac. While Command-R at startup always installs whatever the most recent version you installed on your Mac, holding down Command-Option-R brings down the very latest compatible version that can be installed.

#How to start disk utility on mac install

However, if you have normal Recovery installed and it refuses to install macOS for some reason, you can manually invoke Internet Recovery.

#How to start disk utility on mac full

There, the Mac reaches out over a Wi-Fi or ethernet connection to download the relatively modest Recovery software, which then bootstraps the download of the full macOS installer.Īpple says Internet-based Recovery should happen automatically on supported models, and you should see a spinning globe when that mode is invoked while the download occurs.

#How to start disk utility on mac upgrade

However, there’s yet another option: macOS Recovery over the Internet, which requires either a Mac model released in 2012 or later, or most 20 models with a firmware upgrade applied. When complete, it installs it and reboots, and places the installer in the Applications folder. (Apple doesn’t document that, and I haven’t had to test that for years.)įailing finding it, Recovery downloads the currently installed version of macOS (or OS X), which is about 5GB. In that mode, when you choose to reinstall without erasing the drive, my recollection is that Recovery looks for the current OS system installer on your startup disk in the Applications folder, and uses that.

That allows you to run Disk Utility, reinstall or wipe and install the system, access Terminal for command-line functions, and so on. Normally, you can start up a Mac while holding down Command-R to boot into what Apple now calls macOS Recovery. The article includes instructions on obtaining the installer, which might involve you having to use someone’s else Mac to download it, if you don’t have a replacement Mac on hand yet.īut if you can’t get access to another Mac or the necessary drive, it’s still possible to use a different Recovery mode on all recent Macs, dating back to 2010. We have instructions for making a bootable installer with macOS Sierra (as well as archived versions for several previous releases). Recovery lets you install onto an erased partition, but only if Recovery wasn’t erased, too!īecause Recovery didn’t work, the fastest way to install fresh is to make or borrow a macOS installer on a USB flash drive or a disk drive. There are a couple of options with an erased partition. My friend was wiping my Mac so I could sell it and I’m pretty sure they’ve deleted the start up disk? It’s not letting me reinstall the OS on a recovery startup.