- Pages For Mac Sierra
- How Check Mac Sierra For Errors Free
- Mac Sierra Download
- How Check Mac Sierra For Errors Windows 7
El Capitan’s Disk Utility is a handy tool for troubleshooting and repairing your hard drive (whether you’re noticing that your Mac has slowed considerably or you have problems opening files and applications). You can find it in the Utilities folder within the Applications folder. From Launchpad, click the Utilities folder and then click the Disk Utility icon.
On your Mac, choose Apple menu Restart, then press and hold the D key while your Mac restarts. When the Apple Hardware Test chooser screen appears, select the language you want to use, then press the Return key or click the right arrow button. When the Apple Hardware Test main screen appears, follow the onscreen instructions. Mar 31, 2020 Expert Trick: When you're installing updates on your Mac, research the update version to make sure it's a good one. For instance, if you have 10.12.2 (macOS Sierra) or 10.13.1 (macOS High Sierra), your computer isn't going to run well. However, if you have 10.12.5 or 10.13.6, you'll be fine. Check spelling and grammar on Mac. In many macOS apps, spelling is checked while you type, and mistakes are automatically corrected. You can turn off these features, and use other options while typing emails, messages, or documents. Mar 11, 2020 Next, check disk errors with First Aid. 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. Jun 04, 2020 The main improvements from macOS Sierra are subtle technological adjustments that go to the core of the framework, the file structure that underlies anything on the drive. Apple is doing an excellent job of completely sticking with the current APFS file system, for every HFS-functioning tool on an APFS disk at any time. That said, there are lots of improvements you will see too, most.
In the left column of the Disk Utility window, you can see
![How Check Mac Sierra For Errors How Check Mac Sierra For Errors](/uploads/1/2/6/5/126574820/522209263.jpg)
- The physical hard drives in your system (the actual hardware)
- The volumes (the data stored on the hard drives)
You can always tell a volume, because it’s indented below the physical drive entry.
- Any CD or DVD loaded on your Mac
- External USB or Thunderbolt hard drives
- USB flash drives
- Flash drives (like thumb drives) are external hardware devices that you can add to your Mac for additional storage room or as secure places to back up your data.
Here, you see one internal hard drive (the 1TB SATA entry, which is selected) and one USB external hard drive (the Toshiba entry). The hard drive has three volumes (Wolfgang, Ludwig, and Johann), and the USB drive has one volume (Time Machine).
Disk Utility also fixes incorrect file permissions automatically. Files with corrupt or incorrect permissions can
- Make your Mac lock up
- Make applications act goofy (or refuse to run)
- Cause strange behavior within a Finder window or System Preferences
Using Disk Utility to repair your hard drive carries a couple of caveats:
- You can’t repair the boot disk or the boot volume if OS X won’t run. This statement makes sense because Disk Utility is launched from your boot volume. (The boot volume is usually your Mac’s internal hard drive, where El Capitan is installed.) If OS X isn’t booting completely or is locking up, you can’t launch Disk Utility.
To repair your boot hard drive if OS X isn’t running, you need to boot your Mac from El Capitan’s Recovery HD volume. Hold down the Option key immediately after you hear the start up chord to display the Mac OS X boot menu, and choose the Recovery HD volume. When the Recovery window appears, run Disk Utility. Because you’ve booted the system from the Recovery HD volume, you can repair problems with your start-up hard drive.
Select your boot hard drive or volume in the sidebar at the left, and the First Aid button should be enabled.
- You can’t repair CDs and DVDs. Because CDs and DVDs are read-only media, they can’t be repaired (at least not by Disk Utility).
If your Mac is having trouble reading a CD or DVD, wipe the disc with a soft cloth to remove dust, oil, and fingerprints. If that technique fails, invest in a disc-cleaning contrivance of some sort. Look for a CD/DVD cleaning kit.
If OS X El Capitan is running fine, and you need to repair a disk or volume, follow these steps:
- Save all open documents, and quit all running applications.
- Click the Spotlight search icon on the Finder menu bar, type Disk Utility, and press Return. (From within Launchpad, click the Utilities folder and then click the Disk Utility icon.)
- In the list on the left side of the Disk Utility window, click the disk or volume that you want to check.
- Click the First Aid button and then click Run to confirm.
If Disk Utility does indeed find errors, they’ll be fixed automatically. Would you expect anything less from our favorite operating system?
Pages For Mac Sierra
Modifying this control will update this page automatically
How Check Mac Sierra For Errors Free
Disk Utility User Guide
Disk Utility can fix certain disk problems—for example, multiple apps quit unexpectedly, a file is corrupted, an external device doesn’t work properly, or your computer won’t start up. Disk Utility can’t detect or repair all problems that a disk may have.
Mac Sierra Download
If you run First Aid on a disk, Disk Utility checks the partition maps on the disk and performs some additional checks, and then checks each volume. If you run First Aid on a volume, Disk Utility verifies all the contents of that volume only.
How Check Mac Sierra For Errors Windows 7
- In the Disk Utility app on your Mac, choose View > Show All Devices.Note: If you’re checking your startup disk or startup volume, restart your computer in macOS Recovery, select Disk Utility in the macOS Utilities window, then click Continue. If you check your startup volume (Macintosh HD), make sure you also check your data volume (Macintosh HD - Data).
- In the sidebar, select a disk or volume, then click the First Aid button .If Disk Utility tells you the disk is about to fail, back up your data and replace the disk—you can’t repair it. Otherwise, continue to the next step.
- Click Run, then click Continue.If Disk Utility reports that the disk appears to be OK or has been repaired, you’re done. You can click Show Details to see more information about the repairs. Otherwise, you may need to do one of the following.
- If Disk Utility reports “overlapped extent allocation” errors, two or more files occupy the same space on your disk, and at least one of them is likely to be corrupted. You need to check each file in the list of affected files. Most of the files in the list have aliases in a DamagedFiles folder at the top level of your disk.
- If you can replace a file or re-create it, delete it.
- If it contains information you need, open it and examine its data to make sure it hasn’t been corrupted.
- If Disk Utility can’t repair your disk, or you receive a report that the First Aid process failed, try to repair the disk or partition again. If that doesn’t work, back up as much of your data as possible, reformat the disk, reinstall macOS, then restore your backed-up data.
If your Mac has a Fusion Drive and you see a flashing question mark or alert, see the troubleshooting section of the Apple Support article About Fusion Drive, a storage option for some Mac computers.
If you continue to have problems with your disk or it can’t be repaired, it may be physically damaged and need to be replaced. For information about servicing your Mac, see Find out how to service or repair your Mac.
See alsoErase and reformat a storage device in Disk Utility on MacAdd, delete, or erase APFS volumes in Disk Utility on MacPartition a physical disk in Disk Utility on Mac