Disk utility cannot erase. Feb 17, 2021 · It would not boot up.

Disk utility cannot erase Apparently this is a volume and can't be erased due to unsupported partitioning scheme. If Disk Utility isn’t open, click in the Dock, type Disk Utility in the Search field, then click . Therefore, you can just go to Finder > Applications > Utility and launch the Disk Utility application from here. Here are two methods of erasing your Mac: 1: Go to System Settings > General > Transfer or Reset > Click “Erase all content and settings”. May 17, 2022 · If your disk still doesn’t appear in Disk Utility, or Disk Utility reports that the erase process failed, your Mac might need service. If you find Disk Utility on Mac can’t erase a hard drive, this article will help you resolve the issue. Forcing all devices to show up Mar 4, 2018 · The SSD is visible in Disk Utility. In the pie chart, click the partition you want to delete, then click . Erase Your Mac in Recovery Mode. In which case, you'll erase as APFS. If previous steps didn’t work, you can use Terminal to fix “can’t unmount disk” on Mac. Instead of "Show Only Volumes," choose "Show All Devices. If you have a PC running Microsoft Windows, then read the next paragraph. After a lot of hunting around to figure out how to "reveal" the partition using Terminal, I can now erase or re-partition the 28GB in Disk Utility — but am unable to delete it. I am therefore led to believe that the new Disk Utility in El Capitan doesn't work the same way as the previous one, or that it failed at erasing the card in this particular Oct 16, 2024 · Type list disk and find the number of the drive you want to wipe (be super careful here!). ) Click on the Apply button and click on the Done button when Jan 22, 2025 · Once you follow these instructions, you will see the macOS Utilities window. . If Disk Utility isn’t open, click the Launchpad icon in the Dock, type Disk Utility in the Search field, then click the Disk Utility icon . Aug 27, 2020 · Disk utility erase Hi, I have a 10+ years old iMac I want to give away and try to factory reset it. New comments cannot be posted. C. Select a volume in the sidebar, then click in the toolbar. Click the Format pop-up menu, then choose a volume format. While Disk Utility is powerful, it has its limits. When I go to disk utility, 2 HD drives show up. Corrupted File System: If the drive’s file system is corrupted, Disk Utility may be unable to recognize or erase it. ( Same Problem in pics as always btw) step 1; Click Erase Mac in the window that opens, then click Erase Mac again to confirm. Feb 8, 2025 · To avoid the problem of can't erase the USB drive on a Mac, you can consider lowering the security levels of the USB drive when you proceed to format it with Disk Utility. Feb 12, 2021 · Mac OS (that is, Disk Utility. Click on the drive, then click on "Erase". Tried to erase in the Disk Utility GUI mode/Terminal command/Recovery mode Disk Utility 3. If the button is dimmed, you can’t delete the selected partition. You can then try to erase your hard drive in Recovery Mode. Boot into Internet Recovery Mode (For More Persistent Issues): This mode gets a new copy of macOS from Apple's computers, which might fix software conflicts that are stopping Disk Utility from working: Start up your Mac again. May 12, 2002 · If you have OSX, you can use Disk Utility (Macintosh HD > Applications > Utilities). What can I do now to reinstall Sierra over again. Open DU, select your volume, click on the Enable Journaling icon in the DU toolbar. : Apple Disk Image Media which contains OS X Base System volume). Set the partition scheme to GUID. In a step-by-step guide, we will discuss two primary ways of fixing this annoying issue. In Disk Utility, I found another disk called disk2 and Mac OS X Base System. You can do this while using Internet Recovery, because it does not use your drive Jun 16, 2022 · Disk utility cannot fix apfs volumes if they have mounted time machine volumes on them. People Also Ask Nov 1, 2020 · To see the physical drive in Disk Utility you will need to click on "View" within Disk Utility and select "Show All Devices". Jan 29, 2020 · You can’t reformat a drive in macOS Disk Utility when the Erase button is grayed out. Use command line distil instead. If the Security Options button is unavailable, Disk Utility cannot perform a secure erase on the storage device. This might happen for a variety of reasons, all of which keep you from erasing or reformatting the drives connected to your Mac. Now go to disk utility, select external hard drive and erase. Select your drive from the list on the left. Fix 1. 5 GB Fujitsu MHT20" Then directly below that it just says the standard "Macintosh HD". First of all (I think this is an example of weirdness) two disks show up in Disk Utility. Select Disk Utility and click on the Continue button. ) select disk disk_number; Execute the command below to erase the disk. You can type exit to get out of Diskpart. Jan 6, 2019 · If you are looking for a non-command line version, there is also a way to do it from the native Disk Utility app. Disk Utility cannot erase. When I went to reinstall MacOS, I got this screen: When I returned to Disk Utility, I saw this: I have no idea what to do with this. If First Aid didn’t work, we can use the app to reformat the device – this will inevitably delete your data. Click in the toolbar. I like to force a rewrite of the partition map to something that macOS is familiar with like a GPT partition and HFS+ file system. I have two internal disks showing up in disk utility and I cannot erase the AppleAPFSMedia disk as the process fails. Dec 26, 2017 · In Disk Utility, I select the internal partition containing High Sierra (also 10. The progress bar gets stuck at 50%. As you know, Disk Utility is responsible to run formatting and erasing operations on the disk. How to Fix the "Disk Utility Erase Button Greyed Out" Issue. In the drop down panel set the partition scheme to MBR. Then, you can get back into the standard disk utility application and erase and remove the partitions. Apr 8, 2022 · But, the USB hard drive is detected in Disk Utility. If you’re facing issues where Disk Utility won’t erase your hard drive and the "Erase" button is inactive, follow these tips below to fix it. If you want to erase your Mac’s startup disk, boot it into macOS Recovery mode. Tried to erase into all combinations of GUID parition/MBR/Apple MAP 4. Methods to Resolve the ‘Disk Utility can Nov 27, 2024 · Method 3. erase the disk and erase the volume itself 2. If you run First Aid on a volume, Disk Utility verifies all the contents of that volume only. Feb 9, 2018 · The Utility Menu will appear in from 5-20 minutes. You may have only erased one of multiple partitions. The selected partition won't be Unlike Disk Utility or Terminal, Recovery Assistant doesn't offer a choice of what to erase. Feb 4, 2022 · Cannot reinstall MacOS after erasing hard drive I am giving away an Intel-based Air and wanted to erase all of my data. Jul 2, 2022 · Secure erase options are available only for some types of storage devices. Here’s how to reformat the disk if it cannot be repaired on Mac: Open Disk Utility (you can do this in standard macOS or Recovery Mode if needed). Feb 23, 2021 · I am going to donate or sell my old mac, but I can't erase it. But I cannot erase my SSD. Jul 30, 2017 · Clean Install of Sierra or El Capitan on a Clean Disk. Jun 1, 2021 · in recovery mode i cant see my hard drive in disk utility and i can setup the os. Follow the instructions here: Step 1. That won’t work. Dec 19, 2021 · The screenshot of Disk Utility does not appear to be from High Sierra as it should have a "View" option button just above the left pane of Disk Utility (I do see the High Sierra background). In the Disk Utility window, select your SSD from the list of available drives on the left-hand sidebar. 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. or when i enter diskutil list command i can see my internal hdd in normal mode but in recovery mode i can only see 2. For advanced disk repairs, it may not be sufficient, especially if the volume structure is severely damaged or if certain system processes are using the volume during repairs. A panel should drop down. Is there a way thru terminal on how to unmount the Hitachi HD so I can erase it. Click on "Erase" at the bottom right of the dropdown. If this still does not work, then try erasing the drive as GUID partition and MacOS Extended (Journaled). In the Disk Utility app on Mar 31, 2022 · If the disk you’re trying to erase is badly damaged, Disk Utility may not be able to access the information needed to erase it. 7. Welcome to Disk Utility on Mac - Apple Support Nov 10, 2022 · Disk Utility keeps telling me the partition has an issue and the disk is not writeable. You can also do this by: Boot to the Recovery HD: Jan 30, 2019 · Thanks for replying Leroy. If the Security Options button is not available, Disk Utility cannot perform a secure erase on the storage device. Nov 24, 2018 · ¿which Disk Utility were you using? You cannot use the one in MacOS, because that would erase MacOS as you were running from it. THIS IS DANGEROUS AND WRONG since people will erase their backups and potentially lose data. ) On the left hand side of your finder, check the list of devices that are mounted. As it doesn’t show anywhere, I cannot access the data. You do this from the "Erase" tab within Disk Utility. Feb 13, 2019 · Hi, wallyb444! Sometimes when Disk Utility gets stuck like this for me, I choose a PC format to initialize the HDD then reformat with the Mac settings. So, boot into Recovery Mode (Hold Down: [Command + R] upon boot). I've tried to reformat it using Disk Utility but I get the following message and my usb is unmounted: I've followed the solutions found from these two postings with no luck. APFS formatting typically applies to the entire disk. A panel will drop down. From Disk Utility I then clicked Restore and selected my Time Machine backup. Replug the drive into Mac. the second link is about timemachine backup Jun 17, 2022 · Then, upon running Disk Utility, it didn't even *see* this partition. Thus: Click on Apple SSD SM02 at the top of the Disk Utility drive menu Dec 3, 2024 · Erase the disk in the Terminal after booting into macOS Recovery Mode with commands diskutil list and diskutil eraseDisk File_System Disk_Name /dev/disk[disk number] Erase the drive with Safe Mode . 's ID and size) from the side list. Mar 2, 2021 · I attempted to reformat it in disk utility (clicking on the disk, not the volume, clicking erase, choosing APFS and GUID)-- but it would get stuck-- the progress screen made no progress, event when I let it run over night. As Jash Jacob said, use diskutil - list the partitions, identify the troublesome ones, erase them (diskutil eraseVolume JHFS+ Test /dev/diskname) changing "diskname" to your disk id which will look like "disk#s#". Click Nov 12, 2024 · You have no permission to erase the disk or drive. Go to the Disk Utility app on your Mac. Opening Disk Utility; Once you’re inside the Disk Utility app, click on the action button of the app and make sure that the Show all Devices toggle is enabled. See the Apple Support article About macOS Recovery. It went ahead and erased one of the HDs but not the other. The first one is Hitachi. To delete the volume, you need to open Disk Utility in macOS Recovery. Aug 10, 2016 · Disk Utility Won't Erase - can not unmount the volume you are booted from Hi I have a MacBook7,1 mid 2010 and I need to erase the hard drive so I can give the computer to someone else. I got around the issue myself trying to format an old PATA 80 GB drive to work with a truly old 2004 G4 Macmini: I had to try a few times but from memory what worked was to format the partition exFAT temporarily, then "erase" the whole disk choosing a new partition scheme from: - Apple (powerpc) - GUID (intel) - Master Boot Record (Windows) Jul 27, 2023 · In disk utility, the Container Disk, Macinitosh HD and Macintosh HD - Data selections have the erase icon greyed out. Apr 1, 2025 · Disk Encryption: When a drive is encrypted using FileVault or other encryption techniques, Disk Utility cannot perform an erase operation unless the encryption is disabled. Select the partition in the lefthand menu. So I use Disk Utility - in Disk Utility I see this Disk0 to the left and cannot Erase as all options are grey out and also cannot partition as all options are greyed out Jun 15, 2023 · On the top right corner of the Disk Utility window, click the “First Aid” button. As you Apr 7, 2020 · Erase Disk. " Step 2. 10 where in “select the disk where you want to install” is a blank screen. Jun 23, 2023 · Do you have large enough usb or external drive you can install macos on? if so do that, then boot into it. " Aug 28, 2023 · Disk Erase failed. The instructions tell you to reformat the disk. Partition failed Partition failed with the error: Couldn’t Unmount Disk. Aug 21, 2019 · I tried to install Sierra now but since the APFS was created I cannot install it any longer. So after you give it a name, click the first pull-down menu and select MS-DOS (FAT), then click the second pull-down menu and select Master Boot Record. Mar 24, 2022 · When booting into recovery mode and selecting disk utility (after re-partitioning) three disks are shown; under internal, APPLE SSD SM0032L Media, MacOS (with drop-down menu showing volumes MacOS and MacOS-Data), and under Disk Images, disk2s1. Select the disk or volume in the sidebar, then click the Erase button . In 10. Dec 25, 2023 · The issue likely lies in the view mode. It just says the disk cannot be unmounted and fails. I turned the computer on and off, checked different cables, different computers both Mac and Windows and it doesn’t show. Unmount a Disk Using Terminal. 1gb os hdd, not my internal sata hdd. From their use disk utility completely erase the internal drive again. May 12, 2021 · Click Erase, and input the following exactly: (If you cannot select erase on the main hard drive, erase the "Container" or “Macintosh HD”. When Disk Utility loads select the target drive (out-dented entry w/type and size) from the side list. If “Erase Volume Group” is shown, use that instead. I restarted my computer in Recovery Mode and ran Disc Utility. Type select disk X (replace X with your disk number). Thanks Jash - you helped save me. Disk Utility's Limitations. This is the output in Disk Utility: Disk Utility cannot modify this disk because it contains CoreStorage physical volumes. That one it says I can't unmount. Erase is not an option as I cannot loose its contents. Note: You cannot erase startup disk in normal mode. I tried to repair my SSD using Disk Utility from Recovery Partition, but it says something is wrong with my Partition Map and that I have to erase and reinstall OS X. You can find the disk utility photo and terminal disk utility photo attached. After the erase, run the installer from recovery. I haven't used Disk Utility from the High Sierra installer in a while, but I believe it should have that "View" option. Methods to Fix "Disk Utility Sep 1, 2019 · Select your Seagate Fast SSD Media in the Disk Utility sidebar, not the volume below it. Then type clean to wipe the drive (this is it—the moment of truth!). Dec 1, 2015 · The partition still exists on the disk, it just now doesn't have anything in it. Also Mac says create disk for me , i don’t see anything. 13. Mar 15, 2022 · 1. Oct 23, 2014 · When I switched my Mac on again, it won't start. The disk isn’t mounted. $ diskutil eraseDisk free Empty /dev/diskX Re-partitition the Disk. For this method, we’ll again be using Disk Utility. If successful, see if you can erase it again to see whether APFS is an option. Let Disk Utility finish. (Replace disk_number with the one that needs to be erased. Right click --> "Erase" (it will now rename to Container disk#) In the top righthand menu, press "Partition" Select the desired partition in the pie chart Mar 26, 2025 · Step 1: Launch the Disk Utility application. Format the external hard drive on Mac via Disk Utility. When I click on either disk in Disk Utility and go to the Erase tab all the options are greyed out. The ghost "UNTITLED" drive disappeared. Immediately after the chime hold down the Command-Option-R keys until a globe appears. Eject all the mounted ones except for the one that you have to format. As far as I know, I didn't see that disk2 in my disk list before. 4 days ago · Guide to resolve problems when Disk Utility won’t let you erase hard drives or SD cards because the erase button is grayed out or the “Erase process has failed” error pops up. From your question, you would like to delete the partition completely. Dec 31, 2024 · This corruption might be too severe for Disk Utility to fix. From there I ran First Aid on my Internal Drive. Give it a name that you like and "GUID Patition Map". When Disk Utility loads select the drive (usually, the out-dented entry) from the side list. You're going to need to format it properly. This should work. Disk Utility still offers this option but only if you choose 'Wipe' on physical device rather than volume (which makes perfect sense). Go to 'View' and enable advanced view (I don't remember exact wording). or even exFAT. The Utility Menu will appear in from 5-20 minutes. From the Utilities menu, choose Disk Utility once you are in Recovery Mode and then erase the drive. Click Erase, then click Done. If you need help, please contact Apple Support . Jan 29, 2018 · I have a PNY 128gb flash drive that I can no longer modify (can't delete files). But, when trying to partition, Disk Utility said that it cannot unmount the disk. Click on the Erase button in Disk Utility's toolbar. Click on "Erase" in the Disk Utility tool bar. of commands in terminal: diskutil eraseDisk free EMPTY /dev/disk2 >> Unable to begin erase operation: A writable disk is required (-69772) Nov 4, 2021 · 1. If you delete the actual old volume that is fine, as TJ said, as long as you are sure you do not need any of that data. Oct 8, 2017 · It's not a bug. Disk Utility won’t let you erase your startup Dec 14, 2021 · Add, delete, or erase APFS volumes in Disk Utility on Mac - Apple Support “If the Delete Volume button is dimmed, the selected volume can’t be deleted because it’s in use. Click on the “Erase” button at the top of the Disk Utility window. Mar 7, 2021 · Using Disk Utility I tried 'First Aid', which failed: I also tried 'Erase', which also failed: Then I tried 'Erase' on the disk, didn't work either: I've also tried a no. In the Apple File System Space Sharing dialog, click Partition. but when i’m open my mac in the inside the disk utility application i can see it. Apple File System (APFS)" and in the Disk Utility Help article: Erase a volume. Dec 24, 2021 · Using Disk Utility, I have only the four options Apple File System formats, not the ExFat option. I tried Diskpart on windows and it just gave me errors. Select the physical drive and erase it as GUID partition and MacOS Extended (Journaled). Erase as HFS Extended GUID, unless your Mac is newer than High Sierra's September 25, 2017 release. One says "74. So, from the View menu choose "Show All Devices" and then you will be able to see the actual USB device that holds this volume and erase it. ) Name: Macintosh HD; Format: APFS; Scheme: GUID Partition Map (if shown) Click Erase. Deleting a partition means removing the partition from the partition table. But what to do when Mac Disk Utility can’t erase the hard drive? This may happen due to different reasons. Nov 3, 2021 · For example, if you try to erase or partition your boot disk in Disk Utility, you won’t be able to because macOS won’t unmount the disk. Nov 26, 2023 · Alternatively, you can search for “Disk Utility” using Spotlight. 13 Apple has simplified Disk Utility's view so it only shows volumes (omitting physical devices). If you installed Windows using Boot Camp Assistant or manually added other volumes or partitions, those will also be lost and reset. Shut the computer down, restart while holding the option key, and choose the Recovery HD. I am trying to erase my iMac (21. 5-inch, late 2021, running OS Catalina) before I give it away or sell it, following the Apple instructions here: Use Disk Utility to erase an Intel-based Mac - Apple Support Feb 28, 2023 · Within Disk Utility click "View" and select "Show All Devices" so that the physical drives appear on the left pane of Disk Utility. Disk Erase failed with the error: Couldn’t Unmount Disk. Oct 25, 2017 · By default Disk Utility shows only volumes. Use Recovery Mode to Erase Mac Hard Drive and Fix Disk Utility Can't Erase Drive. (Mac doesn’t create a new part for SSD) Normally, ppl click erase button and reinstall Big Sur, Issue done . I followed the instructions to erase the hard drive in Recovery mode. Open your "Finder. Nov 27, 2014 · You cannot erase the currently-running volume. Disk Utility may often fail to erase the hard drive if the system uses the hard drive. Here's how to fix it: Open Disk Utility and head over to the "View" menu in the top left corner. $ diskutil list /dev/disk2 (external, physical): #: TYPE NAME SIZE IDENTIFIER 0: *2. However, you do not have to erase the drive in order to Journal it. Don't be left out! 1️⃣ Use Disk Utility to create another partition map: Here is how to do it! Step 1. Disk Utility stopped verifying (letter of the hard disk) Couldn’t Unmount Disk. Volume Erase failed Volume Erase failed with the error: “Couldn’t Unmount Disk”. This safeguard is in place to prevent accidental data deletion. Jan 17, 2023 · If for some reason Disk Utility cannot actually erase the drive, then just using the macOS command line to destroy the partition table should be enough to allow Disk Utility to finally erase the SSD (I didn't want to offer this option until the OP tried the other simpler tips as it is more complicated to provide detailed instructions). Technically you can fully erase a HD while you are using that HD to do so. As the name implies, this does a simple erase of the disk and marks the free space as "empty" with no file system or partition scheme. By default, Disk Utility might only show partitions within a drive, not the physical disk itself. Feb 1, 2022 · Disk Utility CANNOT FIX APFS volumes! Why isn't this fixed? Disk utility cannot fix apfs volumes if they have mounted time machine volumes on them. To do this you need the macOS drive identifier for the drive which can be retrieved from Disk Utility. I'm trying to wipe an old Time Machine drive. Method 2: Use Disk Utility to Format the Drive and Create a New Partition Map. Nov 17, 2020 · That means i am stucked again. It erases everything on your Mac - including your files, apps, user data, settings, and macOS itself. Mar 13, 2023 · Once you’re inside the utility folder, double-click on Disk Utility and wait for it to open. What do you do when this happens? I could force reboot, but I'm afraid the drive will be Mar 21, 2022 · When this happens, I will write zeroes to the beginning of the drive to destroy the partition table so the drive appears completely blank to Disk Utility which usually allows Disk Utility to properly erase the drive. Note: With a solid-state drive (SSD), secure erase options are not available in Disk Utility. Nov 27, 2024 · To create a new partition, you will force the utility to show all devices and delete the partition with the issue. From there you can open Disk Utility which allows you to unmount the drive and perform various types of other disk-related actions. Dec 22, 2016 · So I opened Disk Utility planning to delete all files. No matter the case, reach out to Apple Support first, explain the problems that you are running into, and have them help or guide you to the next steps that you Sep 27, 2021 · I am unable to attach photos but the problem is that internet recovery takes me to Reinstall OSX 10. Then hit erase. You can not completely else the entire Drive form Recovery HD, because that would erase Recovery HD while you were running from it. Then reinstall MacOS onto it. Find Disk Utility in the menus and you will now be able to erase your internal storage. Aug 2, 2017 · After Disk Utility loads select the USB drive (out-dented entry with the mfgr. Essentially, the erase process has failed on your Mac. In the dropdown, select Scheme: GUID Partition Map, the select Format: APFS. After all was said and done I restarted the computer. It seems I need to low level format it somehow to fix the partition table or find a way to force that operation. In the Disk Utility app on your Mac, select a volume in the sidebar, then click the Partition button in the toolbar. So I tried to use Disk Utility to erase the startup disk and make a new partition. Disk Utility won't erase Jun 29, 2020 · Disk Utility can’t detect or repair all problems that a disk may have. Aug 4, 2020 · The Utility Menu will appear in from 5-20 minutes. Use Disk Utility on a Jan 30, 2018 · "File system formats available in Disk Utility . I was able to use Disk Utility and re-partition the SSD to a single partition with one Container disk of 1TB hosting my iMac HD1; it is still labeled Container disk2 though. Through struggles I accept that a Container disk cannot be deleted or renamed. Set the Format type to MSDOS (FAT32. Open Disk Utility. Restart the computer. app) will warn you if you try to delete half of a volume group. Select the device from the list and Erase that. 5 days ago · Run the command below to select the disk you want to erase. You can try Force Quitting Disk Utility by right-clicking or Option-clicking the Disk Utility icon on the Dock and selecting "Force Quit". Step 2: Select a Disk or Device to format Dec 27, 2024 · Help. It took a hugely long timing erasing an xART session and now it's stuck deleting the only volume on the disk. Also, windows says it is read only and I cannot format it on Windows 7 either. When I access disk utility, the erase icon does not turn active Feb 27, 2023 · Upon loading recovery use Disk Utility to View menu -> Show All Volumes. "Erase" fails on both partitions: I Feb 21, 2025 · The simplest way to erase a Mac hard drive is by using Mac’s native app Disk Utility. This would be true for most users. The only option that allows the process to continue is to select Appple SSD SM0256F Media. Quit Disk Utility; Go to the reinstall macOS app. ” Aug 20, 2021 · "unable to erase disk on my disk utility: I can't erase my disk in disk utility - I am prepping to send my MacBook Pro for trade init is grayed out when I click on mackintosh HD"-----Mount the Drive: Your drive may no longer be being seen, for what ever reason. I was able to erase the Mac HD below it, but that did no good because my info is on the upper one. Feb 19, 2023 · Disk Utility cannot do it, 69825 error, plus disk cannot be initialised. Nov 27, 2019 · The Disk Utility in Recovery Mode is unable to erase the top level disk containing the Macintosh HD (and with all disks/volumes showing, ie. Share You can erase the disk of an M1 by booting to recovery; in the menubar, go to Utility - Terminal. Select the top most volume in the Disk Utility. There may be more than one disk mounted. Feb 17, 2021 · It would not boot up. Dec 24, 2015 · When using Version 13 (606) of Disk Utility (so, the version included with Yosemite), the SD Card was erased without any problem. Tried to erase into all combinations of MacOS Journaled(case sensitive or not)/ExFAT/APFS(case sensitive or not) 5. 2), click erase, and after about 30 seconds it tells me that it cannot unmount the disk! I then tried booting from the recovery disk (Yosemite) and it cannot unmount the disk either! May 27, 2021 · Two volumes mount when it's in: so it looks like I partitioned it when I tried to install something on it but "Partition" cannot be clicked. Select the APFS volume you want to delete in the sidebar. 0 TB disk2 Running diskutil erase does not help either: Sep 26, 2023 · You need to erase the whole physical external drive as GUID partition and APFS. Be patient. Errors in Disk Utility can arise from: Drive Permissions: Sometimes, your user account may lack the necessary permissions to modify or erase the drive. Nov 4, 2024 · You shouldn’t see the “disk utility can’t repair this disk” message on your Mac after this, and the drive should work normally again. 2. Then find Disk Utility and use it to erase the startup disk. If a disk is connected to your Mac but not mounted in the Finder, Disk Utility won’t be able to erase it. Select your iPod in the Disk Utility window and press the Repair button; Then press the Erase button to erase iPod’s hard drive and select Extended Journaled as the format type. Nov 14, 2012 · The erase option is not disabled, you simply cannot erase a startup drive. Apr 14, 2023 · Hello kenonakite, you cannot simply erase your Mac in disk Utility. When I go to Disk Utility, the erase button is light grey (so I can't select it) and it says "This operation can not be performed because you can not unmount the Aug 1, 2024 · Ensuring you are working with the correct disk is vital for data safety and achieving the desired outcome with Disk Utility. Jun 11, 2020 · I went into recovery mode (Command + R) , disk utility, selected Macintosh HD and as the tutorial says I selected to Erase Group. Click on the Erase tab in the Disk Utility toolbar. -----if you run a data recovery app on the "erase" volume you'll be horrified at what you find after. clean; Safely eject the drive. The erase fails instantly as “Couldn’t unmount disk” appears in the Details text box. In the Erase dialog box, provide a name for your SSD in the “Name” field. If the button is dimmed, the selected volume can’t be deleted because it’s in use. Oct 3, 2020 · What to do when Disk Utility seems stuck Disk Utility seems to be stuck trying to delete a volume. so if you get a warning about deleting the volume you want to delete and another one, you have chosen the wrong volume. Did you select the drive or the already formatted volume on the drive? In Disk Utility, select Show All Devices from the View popup menu. Click on the Erase tab in Disk Utility's main window. You can format a disk or volume using one of the following file system formats. To do this, you must follow the steps described below: Step 1: Open "Disk Utility" on your Mac by accessing the "Utilities" folder from "Applications" on Finder. Restart your Mac and hold Command + R when your Mac starts booting Jun 14, 2013 · Select “Disk Utility” from the boot menu; Go to “First Aid” to verify and repair the disk, or go to “Erase” to format the disk; Again, if the disk throwing the errors is the same as the primary boot partition that Recovery is also on, the above method may not work to resolve the problem. That partition will then no longer exist. It kept saying failed unmounted. How to fix ‘couldn’t unmount disk’ error Jan 18, 2017 · The Utility Menu will appear in from 5-20 minutes. To delete the volume, you need to open May 23, 2017 · I concur try rebooting. It keeps restarting to Disk Utility now. wlmq mkvbzad bgqxn ydqnzoc exowe iwny nprocn zko yig qxjsk zsbb fzpp fxt ntgnzq laymg