If you have problems with your disk, use Disk Utility on your Mac to test and repair it.

The first handy thing you can do is check the S.M.A.R.T. Status with the built-in Disk Utility on macOS. (Self-Monitoring Analysis and Reporting Technology) is an internal monitoring system that is included in almost all Mac hard drives (HDDs and SSDs). S.M.A.R.T helps you get a basic idea of the health of your Mac drive.

How to identify? Just open Disk Utility. Highlight the hard disk name on the left, then check the status from the table (see above). If it shows 'Verified', that means your hard drive is not failing. Otherwise, you may need to replace it right away. If your budget allows, consider. Next, check disk errors with First Aid.

• You can only upload videos smaller than 600MB. How to view developer tab in word for mac 10. • You can only upload files of type 3GP, 3GPP, MP4, MOV, AVI, MPG, MPEG, or RM. • You can only upload photos smaller than 5 MB.

If your Mac is with OS X El Capitan, macOS Sierra or latest High Sierra, select Macintosh HD on the left and click on First Aid. A new window will pop up asking you whether you'd like to run, just hit yes to continue. Note: For OS X Yosemite or older versions, use the two buttons on the right corner 'Verify Disk' and 'Repair Disk' instead. Is an all-in-one app includes a number of disk utilities (optimization, protection, sanitization, repair, and more) that help keep your Mac hard drive in good shape. Best of all, it can health check your Mac hard drive for bad sectors. What are sectors?

They are basically blocks of space on a disk drive. Bad sectors are blocks that are damaged thus cannot be read. Just open the app and navigate to the 'Drive Monitor' section and click the 'Continue' button to scan the disk. If it turns out the number of bad sectors is increasing, it's probably time to replace the Mac drive in case of accidental corruption or crash.


Please note that the app currently doesn't work with Macs with flash storage (i.e. If you feel your Mac hard drive (or solid state drive) is slow to respond, it's good practice to test its write/read speed and benchmark with the industry standard. You'll love this free app made by Blackmagic.

It's an amazing yet simple-to-use app that allows you to quickly benchmark and certify your Mac drive performance. After installing the application on your Mac, open it and next, click on the START button located in the center. Soon you'll see the numbers shown on two speedometer circles.Note: it's best to quit all other active apps before using Blackmagic Disk Speed test, this helps get more accurate data.

Is an advanced Mac system monitor for macOS menu bar. It can notify you of a wide range of events that you care, for example, usage of GPU, memory, disks, network, sensors, battery, power, and more. It's very convenient and handy and in this case, you can rely on the disk monitoring tools to monitor SMART status on your Mac hard drives or SSDs. Although it won't avoid your Mac drive from failing, you can use it as an indicator of potential disk problems before they occur.New update: unfortunately, iStatMenus won't work with Macs with flash storage (all models shipped in 2016 or later) due to the fact that Apple no longer allows third-party software tools to check the SMART status of an SSD. The little brother of, is another useful Mac disk health check app and it's totally free as well. The app is more like a lightweight drive manager for both internal Macintosh drive and external disks.