Can t erase usb drive mac. Jan 27, 2026 · However, Disk Utility won't let you erase hard drive ...

Can t erase usb drive mac. Jan 27, 2026 · However, Disk Utility won't let you erase hard drive and returns the "couldn't modify partition map" error, then the USB drive should be corrupted. Essentially, the erase process has failed on your Mac. It erases everything on your Mac - including your files, apps, user data, settings, and macOS itself. : (-69877)' in Disk Utility when erasing Mac hard drive or external hard drive, USB, SD card, etc. Step 1. 's ID and size) from the side list. 14 hours ago · What does it mean? Don't worry. Apr 18, 2013 · Try this: With the stick plugged in, go to Finder->Applications->Utilities->Disk Utility. Secure Erasing Now the erase was just a quick format meaning the data is likely easy to recover. Unplugging the USB flash drive without using Safely Remove Hardware. To fix this issue, you can try to run Disk Utility's First Aid, erase the drive via Terminal, change permissions on Mac, and so forth. Learn some safe and effective methods for wiping data. When you normally delete files from a USB drive, the data is not actually erased from the disk – only the file reference is removed. Aug 29, 2022 · Now we have our drive named “Success” and formatted as ExFAT. 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. Dec 31, 2024 · You MUST be booted from recovery or from an external drive in order to erase the internal startup drive. 1 day ago · Designed to work with Windows or Mac computers, this external hard drive makes backup a snap just drag and drop To get set up, connect the portable hard drive to a computer for automatic recognition no software required This USB drive provides plug and play simplicity with the included 18 inch USB 3. Jan 28, 2019 · Safely Erase files and folders from USB Drive Another way we use PowerSuite to erase the selected files or folders, it use the US DOD 35 pass standard to overwrite before deleting. Sanitize all data on HDD, SSD, NVMe & USB drives. Disk wipe will delete everything from the USB drive, so, before you start to wipe your USB drive, make a backup of the important data. Important: If you have any files you want to save, copy them to another storage device before erasing a device. To open Disk USB drive works on PC but not Mac? Formatting is often the issue. Again, formatting a drive will erase it completely, so make sure you have everything backed up that you want to keep. Can Disk Utility erase an external drive? Yes, Disk Utility is the preferred way to erase and reformat an external drive on a Mac. 14 hours ago · Need to erase partition on USB stick? Follow our guide for Windows with fast, safe & beginner-friendly methods using Disk Management, Diskpart, and partition tools. This wikiHow article teaches you how to clean all the data off a USB flash drive on Windows and Mac. No cost-per-erase! Example of Erase Certificate Data Sheet (PDF) Powerful and portable software that allows you to destroy all data on Hard Disks, Solid State Disks (SSD) & USB disks and Memory Cards, excluding any possibility of deleted files and folders data recovery. It can help you securely wipe a USB flash drive on your Mac and permanently erase all data from the USB flash drive, making data recovery be impossible. To change this, click the "Security Options" button, drag the slider at least one notch to the right to that the tool 3 days ago · Summary: Disk Utility won't let you erase hard drives? This post includes all possible solutions to fix the "Erase process has failed" error, and the Erase button grayed out in Mac Disk Utility. Jul 15, 2025 · 8 tips to help you fix can’t delete files from USB or external hard drive on Mac are offered in this post. If you need data on the drive you want to format, use iBoysoft Data Recovery for Mac to preview your files for free and recover them. Jan 15, 2025 · In this article, we’ll explore the possible reasons why you can’t format a USB drive on your Mac and provide step-by-step solutions to help you resolve the issue. The process to erase and format a a USB drive is the same regardless of whether the drive is a USB hard drive, USB flash drive, SSD, key, thumbdrive, or otherwise, and it’s also the same regardless of whether or not the drive is USB-C or USB-A. Select Format > uncheck Quick Format > click Start. Whether you’re selling a drive, preparing it for a new operating system, or just want to start fresh, knowing how to use Rufus to clear a USB is an invaluable skill. By securely erasing, you overwrite the data to make it unrecoverable. Jan 26, 2023 · Learn how to use the built-in Disk Utility tool or a desktop shortcut to safely format and erase an external drive connected to your Mac. List of solutions for "A writable disk is required 69772" on Mac: 3 days ago · Solutions to fix 'Error: -69877: Couldn't open device' in Terminal or 'Couldn't open device. Jan 20, 2026 · If this feature isn't available or doesn't work: To both erase your Mac and reset it to factory settings, follow the steps in what to do before you sell, give away, or trade in, or recycle your Mac, but disregard the instructions for using Erase All Content and Settings. Dec 17, 2024 · Find why you can't delete files from external storage device such as USB drive or SD card and fix this issue with built-in tools or third-party software. But sometimes, Mac Disk Utility can’t erase the hard drive due to various reasons. However, it is not a big issue, and you can try 9 workable solutions to troubleshoot it. I had previously had a windows 7 partition done with boot camp. Mar 14, 2024 · Permanently Erase Data Stored on External Drives Just follow the steps shared below to completely wipe out external USB hard drives, SSD drives, and flash drives on a Mac. Time Machine can’t back up to iPhone, iPad, or iPod or to a disk formatted for Windows. Jul 6, 2025 · Did you figure out a solution to the problem of can't erase the USB drive on a Mac? With an overview of the reasons, followed by the solutions for fixing the issue with your USB drive on your Mac, this article has been a complete guide to resolving this error. Oct 25, 2024 · To completely wipe usb drive windows 10, please insert the USB drive, open File Explorer, and right-click the drive. It will explain why you can't erase the USB drive or other drive and give you multiple workarounds to fix this problem. Protect your data with our easy, secure guide for any device. Here's how to format a flash drive on Mac. Aug 20, 2025 · Why Mac disk utility can’t erase external hard drive? Learn the reasons, manual solutions, and how to fix the issue effectively. Learn to restore deleted files, fix common issues, and compare top recovery tools. You'll need lots of free space for either OS to run smoothly, so consider getting an external if the built-in one is over half-full. Oct 9, 2008 · Cannot erase a usb flash drive in finder or disk utility I have tried multiple usb flash drives have not had this problem before. The Erase function in Disk Utility allows you to quickly wipe, reformat, and repartition your external drive. (You can also right-click the external drive in the list and select "Erase. Unlike Disk Utility or Terminal, Recovery Assistant doesn't offer a choice of what to erase. We provide antivirus, anti-malware, VPN and scam detection for PCs, Macs and mobile devises. Oct 3, 2023 · Securely erasing a USB drive is important on a Mac for several reasons: To protect your privacy and ensure sensitive data cannot be recovered. . If the computer fails to boot into recovery while using a wireless keyboard, you should try again with a wired USB keyboard. Nov 29, 2019 · I had a external USB HD NSFT formatted. From what I've read, I need to completely nuke the partition table. dmg file to create one (I do have a PC I can use), but I don't have that file unless it is buried in on the Mac hard drive -- in which case I may be able to restore it from my cloud backup. Delete sensitive information with peace of mind. Then, you can use your USB or external drive again. Set the Format type to APFS (SSDs only) or Mac OS Extended Jan 26, 2023 · This isn’t a problem however, as you can easily format a USB drive to be fully Mac compatible. You can find a summary account of all these temporary files in the “C” drive by going to “System -> Storage” in Windows 11 or “System -> Storage -> Local Storage” in Windows 10. Jan 19, 2026 · By using UltraDMG, you can download the macOS Catalina DMG file, create a bootable USB on Windows or Mac, and install macOS without using Terminal or manual scripts. If you want to erase your startup disk, you’ll need to either boot in Recovery mode or boot from an external USB disk or USB stick. Secure Erase is a built-in tool for permanently wiping the data you don't want — all in a matter of seconds — without losing what you need or compromising the drive's performance. Axel F. There can be different reasons for formatting a hard drive or an external device on Mac. In Disk Utility on Mac, you can erase and reformat storage devices to use with your Mac. This can be caused by: macOS does not support the file system. Learn why it happens and how to format a USB flash drive for Windows and macOS. To format a drive on a Mac, you'll need the built-in Disk Utility application. ERASE the entire drive using Disk Utility to Mac OS extended, journaling enabled GUID partition format 3. Can’t Erase or Reformat a Drive in macOS Disk Utility? 3 Easy Ways to Fix While macOS provides an intuitive interface through Disk Utility for managing storage devices, users occasionally encounter issues when trying to erase or reformat a drive. Sep 27, 2025 · USB drives should automatically appear in File Explorer when you connect them to your computer. If you're having trouble erasing a USB drive on a Mac, try using the Disk Utility app to format it. This makes it one of the easiest ways to prepare a macOS installer for upgrading, reinstalling, or repairing a Mac system. Follow these troubleshooting steps if your Windows 10 or Windows 11 PC doesn't show a connected drive. But in some cases, the problem that you can’t delete files from a USB flash drive happens. If that doesn't work, you can try using a third-party tool like Disk Drill or Qiling to recover any important files and then reformat the drive. Mar 8, 2024 · Here are three disk wiper tools can help you wipe USB drive, pen drive, thumb drive, flash drive on Mac. Launch Disk Utility, select your USB drive from the sidebar, click “Erase” in the top menu bar, choose a format like “Mac OS Extended (Journaled)” and click “Erase” to confirm. Jan 27, 2026 · If you can't erase the USB flash drive on Mac, the reasons could be physical damage on the drive, permission issues, an unmounted drive, file system corruption system errors, OS glitches, virus attacks, etc. 6 days ago · The time it takes to wipe your Mac clean depends on the size of your hard drive, the speed of your internet connection (if reinstalling via Internet Recovery), and the overall performance of your Mac. It works every single time, as long as the drive isn’t physically damaged. Oct 8, 2023 · This will wipe the SSD and reformat it. If you connect a disk formatted for Windows, it can be reformatted (permanently removing all data) to a Mac format and used as a backup disk. The disk in question could be an external hard drive, a USB stick, or an SD card. Mar 3, 2025 · Before we start: Donemax Data Eraser for Mac is one of the best disk wipe software for macOS. May 25, 2022 · A full tutorial on using Darik's Boot And Nuke (DBAN) to permanently erase all the files from a hard drive. Unfortunately, erasing or reformatting the drive doesn't fix it. Mar 3, 2026 · If you don't make any mistake and there are no issues with your system, then you will not encounter the Mac Disk Utility erase process has failed issue. To help you out of this dilemma, MiniTool Solutions gives this tutorial. Jun 24, 2020 · Otherwise, you can format a USB drive for Time Machine by opening Disk Utility, selecting the drive you want to format, clicking Erase, and choosing the Mac OS Extended (Journaled) format. If a USB drive is write-protected, you can't edit, 1 day ago · Designed to work with Windows or Mac computers, this external hard drive makes backup a snap just drag and drop To get set up, connect the portable hard drive to a computer for automatic recognition no software required This USB drive provides plug and play simplicity with the included 18 inch USB 3. In the drop down panel set the partition scheme to GUID. Jun 11, 2021 · Restart your MacBook Pro in Safe Mode and then format the USB drive. Powerful digital protection, always by your side. Delete an APFS volume When you delete a volume, all the data on the volume is permanently erased, and the volume is removed from the container. Blank hard drive - Find a USB external hard drive that holds at least 100 gigabytes if you don't want to partition your Windows hard drive. From there, you should see your memory stick appear in a sidebar on the left. Why can't I partition my SD card/USB drive/hard drive on Mac? May 19, 2016 · How to Format a Drive on a Mac If you want to use a different file system on your USB drive, you'll need to "format" it. To return to the Recovery app, choose Disk Utility > Quit Disk Utility. 11) for a USB drive to erase and format it as HFS+ with journaling (normal format on older macOS - you would normally use APFS on macOS 10. The disk you’re trying to erase is the disk you booted from. In this article, we will walk you through the steps to erase and format a USB drive on your Mac. Looks like I need the Sierra . Discover how easy hard drive recovery can be with help from the tech experts at Geek Squad. 5 I found that this worked (on macOS 10. I dont know if its related but my girlfriend plugged an external flash drive with a backup system that copied some of my files includimg some of my windows one. 2 days ago · Learn how to wipe a laptop before recycling or reset a laptop before selling. Click on the Erase tab in the Disk Utility toolbar. 14 hours ago · Master Recuva recycle bin recovery with our 2026 guide. Oct 16, 2025 · Here are two methods to help you format USB flash drive on Mac: 1. To remove these temporary files, go one level deeper and erase what you don’t need. Oct 25, 2017 · Disk Utility cannot erase USB Drive I'm trying to reformat a USB thumbdrive that I'd previously been using as a Linux boot device. BACK UP any data on the drive to somewhere else 2. Jan 29, 2020 · You can’t reformat a drive in macOS Disk Utility when the Erase button is grayed out. Aug 14, 2022 · The easiest way to erase any storage drive on Mac is by using Disk Utility feature. May 6, 2024 · Clear out your USB flash drive in a snap with our easy-to-follow guide. The Premier Mac Data Recovery Software Recover deleted, lost, or damaged data, personal or business documents, music, photos, videos, and other files from internal, external and virtual hard drives, memory cards, iPhones, iPads, Android devices, RAID arrays, and other data sources. First of all plug in the external drive or USB drive that you want to erase to your computer. 3 days ago · Here, we will elaborate on the common "grayed out" issues regarding partition-related buttons in Disk Utility, such as the Partition button, the ( +/- ) button showing after clicking Partition, or the grayed out ( - ) delete button. Jul 29, 2021 · 5 I have a 32Gb USB flash drive, and I flashed it with a bootable image. To format a drive on a Mac, you’ll need the built-in Disk Utility application. Jul 30, 2017 · I don't have a USB boot drive. Unfortunately, you can’t do that. Sep 18, 2025 · Turn off write protection on a pen drive using the switch, Diskpart, Regedit, & moreThis wikiHow guide teaches you how to remove write protection from a USB drive using Windows 10 or 11. APFS or APFS Encrypted disks are the preferred format for a Time Machine backup disk. I used DiskUtil for erase and get a OSX disk in HFS+ but after i try to do it, I could not mount the disk and I could not format again. This involves deleting the files and then emptying the trash. This requires a computer with Finder (on a Mac with macOS Catalina or later) or iTunes (on a PC or older Mac). Learn how to properly delete files from your SD Card or USB flash drive on Mac. Diagnosing Why Your USB Drive Is Not Showing Up If you connected a USB drive and Windows doesn't show up in the file manager, you should first check the Disk Management window. Use Donemax Data Eraser for Mac to format USB flash drive on Mac. If Disk Utility isn’t open, click in the Dock, type Disk Utility in the Search field, then click . Jun 20, 2018 · Drive Partition and Format - El Capitan or Later Open Disk Utility in the Utilities' folder. Disk Drill excels in data recovery for Mac. Mar 30, 2017 · Here's a complete guide on how to erase any drive (including USB flash) and make its data absolutely unrecoverable using macOS. Unlike Disk Management’s graphical interface, Diskpart can wipe every partition on the drive regardless of type or file system. If your MacBook’s Disk Utility won’t let you erase drives, follow the steps below to fix it. Restore via Recovery Mode If your iPad is stuck in a restart loop and you can't access the settings, you'll need to use recovery mode. Aug 2, 2017 · How to fix a USB that won't reformat or delete files I have tried to use disk utility, drag and drop files in the trash, reformat (currently on (MS DOS32), but my SanDisk USB won't accept files (some were loaded on before the issue occured) and won't delete any. If Disk Utility can’t repair your disk, back up as much of your information as possible, then follow the instructions in Erase and reinstall macOS. Feb 19, 2026 · USB drive - Find a flash drive that can hold at least 32GB. Jan 6, 2026 · External hard drives back up your most important files, but what happens when they malfunction? Here's what to do if your device is not detected by Windows or macOS. This is a step-by-step DBAN walkthrough. Whether you want to erase your USB drive to free up space, remove personal information, or prepare it for use on another device, formatting is the way to go. Jan 27, 2026 · On Windows, you can use third-party software, like Secure Eraser, to securely erase a USB flash drive. After Disk Utility loads select the drive (out-dented entry with the mfgr. Unfortunately Disk Utility cannot erase the device. Sep 13, 2022 · Steps to Resolve the Erase Process has Failed Message on macOS for USB Flash Drives and Memory Cards Common Causes / Issues Erase process has failed happens when trying to format. You can also learn how to (permanently) delete files or erase data on the external hard drive. Find data recovery services at a Best Buy near you. Go to the Disk Utility app on your Mac. 3 days ago · Summary: Disk Utility won't let you erase hard drives? This post includes all possible solutions to fix the "Erase process has failed" error, and the Erase button grayed out in Mac Disk Utility. Jan 5, 2026 · This guide will address a common issue faced by Mac users: can't delete files from USB Mac. Deleted Mac USB files are still recoverable. " By default, your Mac will note securely wipe the drive. Jan 13, 2026 · It is frustrating when you find that you can't delete files off a flash USB drive on Mac. Jul 16, 2024 · If you’re looking to get rid of all the data on a Mac hard drive or SSD, you need to wipe it fully. RE-partition if necessary (you don't need to do this step) 4. So, that process modified the partition table, and the drive now reports a size of 1Gb. Mar 18, 2009 · Brian has it right in reply 2 above. RESTORE the data to the drive from your backup 3 days ago · Can't delete files from external hard drive on Mac? Here're why and 10 ways to fix it. In most cases, you can delete and manage files on the USB drive without hassles. When I insert the drive, I get a warning that it's not readable: So I click "Initialize" which launches Disk Utility. Get step-by-step instructions on how to wipe it clean! Sep 20, 2021 · On a Mac, open the "Disk Utility" application, select the external drive in the list on the left, and click the "Erase" button in the toolbar. Malwarebytes official site: all-in-one cybersecurity software for all your devices. Jan 18, 2017 · I can't remove a partition on my mac and cant reinstall osx I had el capitain instaled on my mac. Mar 16, 2026 · USB drives are incredibly useful, but they can also accumulate unwanted data, become infected with malware, or simply need to be repurposed. 0 cable The available storage capacity may vary. We will provide step-by-step instructions and tips to help you overcome this problem. A couple warnings up front. Erasing a storage device deletes everything on it. Conclusion Trouble erasing an external drive on your Mac? Mar 31, 2022 · Why won’t Disk Utility erase my disk? There are a few reasons why the erase process may have failed on your Mac. Jan 15, 2026 · Bonus: Once the download is complete, use the built-in "Create boot disk" feature to prepare your installation drive automatically. Learn how to permanently erase files from any USB drive on Mac — works on all macOS versions including Sonoma. A panel should drop down. Nov 27, 2025 · Summary: This article offers solutions to fix "Erase process has failed" on Mac's internal and external drives, including Macintosh HD, external hard drive, SSD, USB flash drive, and SD card. How to Format a Drive on a Mac If you want to use a different file system on your USB drive, you’ll need to “format” it. Use Disk Utility to format USB flash drive; 2. Dec 4, 2024 · A USB flash drive is a commonly used portable data storage device, nowadays. This might happen for a variety of reasons, all of which keep you from erasing or reformatting the drives connected to your Mac. Select the APFS volume you want to delete in the sidebar. The system turns off while in use. May 19, 2016 · How to Format a Drive on a Mac If you want to use a different file system on your USB drive, you'll need to "format" it. 13+): sudo diskutil eraseDisk JHFS+ 'My disk name' diskX Where X is a number. RESTORE the data to the drive from your backup Oct 5, 2023 · You can use Disk Utility to erase the contents of a USB drive. See whether that resolves the issue. We can instead do a “Secure Erase” to force the drive to be erased in a way that will make it hard to recover. Fishrrman's "guaranteed!" way to repartition a drive (or remove existing partitions): 1. Jul 10, 2020 · If you have a new USB flash drive or an older one that isn't formatted correctly, you can reformat the flash drive for Mac. Dec 20, 2024 · A USB drive is a portable storage device that allows you to easily transfer and store data. What you should do is repair the USB hard drive: Jun 12, 2024 · The error appears because your Mac can’t access the disk you’re trying to erase or reformat. Jan 29, 2020 · Here are three easy ways to fix when the Erase button is grayed out in Disk Utility, stopping you from erasing or reformatting your drives. Hard drive is 7 months old. Also read: How to Create macOS Bootable USB Installers from DMG Method 2: Official App Store Links (Latest Versions) For users with a modern, compatible Mac, Apple provides these direct links to the Mac App Store. Click on it, then click on the "erase" tab and follow the instructions. 14 hours ago · After the erase is complete, you can set up the iPad as new to test it, or restore from your backup. Very often a wireless keyboard cannot respond quickly enough to put the computer into recovery. This post will help you out of the tricky issue. wktdt qxyzrqqz wpflieh lhb tas gfj jluurhflg jfcdgda hifeb yltjn