Disk Utility User Guide
Repair a storage device in Disk Utility on Mac. 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. Your Mac’s Utilities Folder contains a lot of helpful extra tools like the Bootcamp Assistant, Monitor Activity, Disk Utility, Terminal, and a lot more. You can find your way in the Utilities Folder through clicking the Applications. After that, click the Utilities Folder. Apple also has created 2 shortcut guides in order to make your way.
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.
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.
Mac OS X is not in the list. If you're searching for a program that is similar to Glary Utilities but runs on Mac, MacBooster is the best Glary Utilities for Mac alternative. It's the most closest operating system tool with almost identical features. Mac OS X 10.5 or later is supported, including 10.9 Mavericks, 10.8 Mountain Lion, 10.7 Lion, etc. Since there isn't a version of TuneUp Utilities for Mac, you can check this list of alternatives to find a replacement. All these programs will help you improve your system capabilities, are safe, easy-to-use, user-friendly and can be successfully used as a substitute for TuneUp Utilities for Mac.
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.
Viewer is a single 'command center' used by a support technician/admin. The Viewer is where you keep your address book, start remote sessions and manage your licenses.
Related links: About Remote Utilities
The Host is a remote module installed on a target (i.e. remote) PC. This module works for both unattended and attended access.
Related links: About Remote Utilities
Agent is a remote module for spontaneous-only support. The Agent displays its own window that can be branded with your custom logo and text. Agent doesn't require installation and administrative privileges to run.
Related links: About Remote Utilities
Remote Utilities
Install the Viewer on the computer you want to control from. Alternatively, you can run the portable Viewer without installation.
Version 6.10.10.0, July 2, 2019.
30-day trial.
Install the Host on each remote computer for unattended access. For spontaneous remote support use the run-only Agent.
Version 6.10.10.0, July 2, 2019.
Free.
Multilingual | System requirements | SHA-256
Watch product video (2:19)
RU Server
Install RU Server on your premises to route your remote connections through and use enhanced capabilities. Learn more.
Version 2.8.2.0, November 28, 2019.
64-bit OS required.
Free.
Multilingual | System requirements | SHA-256
- English
- Arabic
- Br. Portuguese
- Chinese
- Czech
- Danish
- Dutch
- French
- German
- Hebrew
- Italian
- Japanese
- Korean
- Norwegian
- Windows 10/8/7/Vista/XP
- Windows Server 2016/2012/2008/2003
- 32- and 64-bit OS support
- No special hardware requirements
- Windows 10/8/7/Vista/XP
- Windows Server 2016/2012/2008/2003
- 64-bit OS required
- No special hardware requirements
- RU Server computer must have a public (external) IP address or DNS name. Learn more
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