Open Disk Utility In general, you can just open Disk Utility from the Utilities folder of your Applications folder. However, if your Mac doesn't start up all the way, or you want to repair the disk your Mac starts up from, open Disk Utility from macOS Recovery. Open “Disk Utility” on the Mac, Disk Utility is found in the /Applications/Utilities/ folder Select the disk from the list at the left of the Disk Utility screen (select the actual main disk, not a partition). Look for the “S.M.A.R.T. Status” of the disk information overview in Disk Utility. Hard disk utility for mac free download - Hard Disk Scrubber, Hard Disk Sentinel, Flobo Hard Disk Repair, and many more programs. Hard disk utility for mac free download - Hard Disk Scrubber, Hard Disk Sentinel, Flobo Hard Disk Repair, and many more programs.
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␡- Data Rescue II
Editor's Note: Ryan Faas has updated this article for 2010. Be sure to also read The Top Mac Hard Drive Utilities, 2010 Edition.
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When it comes to diagnosing and resolving problems with their computers, most Mac users rely on Disk Utility and the tools that come with Mac OS X. Disk Utility can resolve a number of problems—such as damaged hard drive directory structures and permissions problems with Mac OS X’s system files. However, Disk Utility doesn’t provide overly extensive hard drive repair and management options and it doesn’t provide any data-recovery features. Also, the tools found in Mac OS X’s Utilities folder don’t include extensive diagnostic tools. The limited capabilities of the tools that ship with Mac OS X can be augmented with a number of utilities offering advanced disk management, diagnostic, and repair capabilities. The five tools profiled here each have own particular strengths, but they all offer much greater chances of diagnosing, recovering from, and preventing major hardware, hard drive, or operating system problems.
Data Rescue II
Prosoft’s Data Rescue II is a tool that is designed to do one thing, data recovery, and designed to do it extremely well. Data Rescue II is for situations in which you need to recover critical data that has either been deleted or is stored on a damaged drive. It can work with drives that are failing because of corrupted directory structures (the most common hard drive problem) or because of physical problems with the drive.
Unlike hard drive repair tools, which work by attempting to repair or rebuild corrupted directory structures, Data Rescue doesn’t make any modifications to a drive. This enables it to have a greater chance of recovering data from a drive than the process of actually trying to repair the drive. Repairing a corrupted hard drive can often be successful, but if it fails, it can also result in further data loss. Data Rescue’s read-only approach means that it often has a better chance of recovering data than other tools.
Data Rescue ships on bootable CDs for both Power PC and Intel Macs, and it provides both an easy-to-use guided interface and an expert interface for advanced users. When attempting to recover data, it can sort available files by type, making locating and recovering specific items easier. It can be used to clone the contents of a damaged drive during recovery or to allow you to select only the files you need. The one requirement to be aware of is that Data Rescue II will require a second hard drive or partition to recover data to—this is required for its hands-off recovery approach.
If you are looking for a tool simply to recover data, there is no better tool than Data Rescue II. In fact, the ability to recover data and then simply reformat a problem drive using Disk Utility could provide consumers with a complete disk toolkit solution. The fact that it also offers you the ability to recover deleted files is icing on the cake, particularly for support professionals who often get asked to perform this type of miracle.
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If you think your Mac might have a hardware issue, you can use Apple Diagnostics to help determine which hardware component might be at fault. Apple Diagnostics also suggests solutions and helps you contact Apple Support for assistance.
Prepare your Mac
- Shut down your Mac.
- Disconnect all external devices except keyboard, mouse, display, Ethernet connection (if applicable), and connection to AC power.
- Make sure that your Mac is on a hard, flat, stable surface with good ventilation.
Start Apple Diagnostics
Determine whether you're using a Mac with Apple silicon, then follow the appropriate steps:
Apple silicon
- Turn on your Mac and continue to press and hold the power button as your Mac starts up.
- Release when you see the startup options window, which includes a gear icon labeled Options.
- Press Command (⌘)-D on your keyboard.
Intel processor
- Turn on your Mac, then immediately press and hold the D key on your keyboard as your Mac starts up.
- Release when you see a progress bar or you're asked to choose a language.
View the test results
Apple Diagnostics shows a progress bar while it's checking your Mac:
When testing is complete, Apple Diagnostics shows the results, including one or more reference codes. Learn about Apple Diagnostics reference codes.
To repeat the test, click “Run the test again” or press Command-R.
To restart your Mac, click Restart or press R.
Free Disk Utility For Mac
To shut down, click Shut Down or press S.
To get information about your service and support options, make sure that your Mac is connected to the internet, then click ”Get started” or press Command-G. Your Mac will restart to a webpage with more information. When you're done, choose Restart or Shut Down from the Apple menu.
Learn more
On an Intel-based Mac, if you can't start Apple Diagnostics with the D key, try these solutions:
Samsung Disk Diagnostic Utility
- Press and hold Option-D at startup to use Apple Diagnostics over the internet.
- Make sure that your Mac isn't using a firmware password.