Does Repairing Disk Erase Data

If you lot're experiencing these issues on your Mac, it might be time to run the Disk Utility's Showtime Aid function and repair your disk:

Regular organization and app crashes
Vanishing and decadent files
Problem starting upwardly your Mac
Cryptic fault messages
External devices not working properly

Start things first, if y'all're encountering any of the in a higher place items, it's time to backup your data earlier it's too late. These kinds of issues indicate there could be a trouble with your Mac disk that definitely needs investigating. Here, we'll explain how to run Commencement Assist to fix possible bug on your Mac.

What is the Disk Utility's Offset Help role?

Some folks really don't like the idea of poking around in Disk Utility, just it's simple to apply and not a place to fearfulness.

The Outset Aid part within Disk Utility can quickly bank check the status of your Mac disk, volumes, and external devices. It has multiple congenital-in capabilities that can find and repair errors. After analyzing the disk directory, First Aid volition determine if it can repair any detected impairment.

If you're facing a trouble with your startup disk, you'll need to run Offset Aid from Recovery Mode — we'll cover this in simply a moment.

Repair your disk using Deejay Utility

It'south straightforward to run a cheque on your Mac with Disk Utility. You'll quickly exist able to identify if any of your disks have issues.

Mac disk utility

Open Deejay Utility (Finder > Applications > Utilities).
In the sidebar, select the disk yous're having problems with.
Click on Offset Aid at the top, and select Run.
Once complete, y'all'll see a drop-down showing the status; click this to explore. Disk Utility volition try to repair what it can and warn you most errors information technology found that it can't set.

Although this method checks all disks, we tin can't repair a broken startup deejay from hither; for that, we demand to run First Aid from Recovery Fashion.

Quick Tip: If you lot suspect your Mac disk is declining, CleanMyMac X has many easy-to-utilize maintenance tools that can assistance keep your drive running smoothly. I'll talk you lot through some of the features afterwards in the article. Or you download the free version now —it's notarized by Apple and completely safe for your Mac.

How to run First Aid from Recovery Mode

Although Disk Utility checks your startup volume as well, information technology can't fix whatever errors if those are found. Running Start Assist from Recovery Mode is necessary for repairing your startup disk. And then, permit'south leap straight in:

Restart your Mac, immediately pressing and property Command (⌘)+R on its startup. When you encounter an Apple logo or spinning globe, release the keys.
At present, choose Disk Utility from the macOS Utilities window.
Select your startup disk from the sidebar, and then click the arrow to view all the containers and volumes. Apple recommends repairing volumes first, so containers, and and then the startup disks terminal.
So, from the sidebar, select the last book listed, and so click Outset Aid at the top, and and so Run, working your way upwardly the listing for each volume, container, and finally, the disk itself.

Mac disk utility window

As you can see, I've got 2 volumes, one container, and then the startup disk.

This could have a while, so don't be alarmed if it'due south non over in a couple of minutes; Disk Utility will run its checks and try and repair errors for you.

If Disk Utility finds errors that it can't repair, information technology's now time to erase (format) your disk.

Erase (format) your disk

Formatting a disk deletes all files it stores. Brand sure you backup all your data to prevent losing anything important.

To beginning upwardly from macOS Recovery again, simply follow steps 1 and 2 above.
Select your disk from the sidebar, then click Erase from the superlative and complete these items: Name: The name your disk volition have later the erase
Format: Disk Utility shows a compatible format by default.
Scheme : Choose the GUID Partition Map.

Now, select Erase to start erasing your disk and every container and volume within it.
When complete, quit Disk Utility.
You'll now need to reinstall macOS if information technology's your startup disk.

Repair deejay permissions and run maintenance scripts

Earlier in the commodity, I mentioned using CleanMyMac X . For problems with your hard drive, this app has some great tools to improve your drive operation and go along your Mac feeling fresh.

I similar to regularly run the Maintenance Module, which tin specifically help with both repairing deejay permissions and running circuitous maintenance scripts.

Repairing deejay permissions can help with:

Apps not working correctly
Files that won't delete

Benefits of running maintenance scripts:

Removes temporary items
Optimizes organization
Rotates organization logs

Here's how to go started with CleanMyMac X Maintenance Module:

Maintenance Scripts in CleanMyMac X

Open the CleanMyMac Ten app — download the free version here .
From the left sidebar, select the Maintenance Module.
Select Run Maintenance Scripts and Repair Disk Permissions, and then printing Run.

There are some other seven useful items on the list, which you tin can, of course, run too.

Information technology's a pretty obvious one, just running regular maintenance on your Mac will help to keep it in proficient wellness and fully optimized. CleanMyMac X is more than only another Mac maintenance tool. It's a powerful cleaner, malware remover, and operation enhancer that will continue your Mac running similar new.

Issues with your drive always require a little bit of troubleshooting. Hopefully, this commodity helped you to investigate and repair the hard drive on your Mac.

Good luck, and come up back soon for all the latest Mac tips.