Mountg A Dmg In Windows

Part 1: Open a DMG File in Windows 10/8/7 with PeaZip PeaZip is a free and open-source file manager for varios types of compressed files. It can be used to open and view archive file formats such as DMG, ISO, RAR and many more. In this blog, we will discuss that how can we mount DMG in Windows. But, before going further first we have to know. Just go through the steps below to pull off the task: Step 1. First of all, download the DMG extractor program file from the internet and install it in your personal Windows. Run the application with admin rights and in the main UI of the tool's screen, click on 'open' button in the.

Install operating systems or software on DMG files in Windows computers. ISO files gives more options to operate with in Windows systems. In this tutorial, we will show you two efficient ways to convert DMG to ISO image files so that you can run them in Windows operating system. Obviously you will need to download and install ApplePi-Baker first, and after that follow these steps: Mount the DMG file by double clicking it. The DMG should now appear as a “disk” in Finder. Start ApplePi-Baker and located the mounted disk. This can be done in two ways:Option 1: Click the “ Select a Disk ” in the “ Select Disk(s. DMG files are specific to the MAC OS X operating system and you need a specialized program to open them in Windows. But this compatibility problem can be solved using a converter application.


OSFMount allows you to mount local disk image files (bit-for-bit copies of an entire disk or disk partition) in Windows as a physical disk or a logical drive letter. You can then analyze the disk image file with PassMark OSForensics™ by using the physical disk name (eg. .PhysicalDrive1) or logical drive letter (eg. Z:).

By default, the image files are mounted as read only so that the original image files are not altered.

OSFMount supports mounting disk image files as read/write in 'write cache' mode. This stores all writes to a 'write cache' (or 'delta') file which preserves the integriy of the original disk image file.

OSFMount also supports the creation of RAM disks, basically a disk mounted into RAM. This generally has a large speed benefit over using a hard disk. As such this is useful with applications requiring high speed disk access, such a database applications, games (such as game cache files) and browsers (cache files). A second benefit is security, as the disk contents are not stored on a physical hard disk (but rather in RAM) and on system shutdown the disk contents are not persistent. At the time of writing, we believe this is the fastest RAM drive software available.

OSFMount supports mounting images of CDs in .ISO format , which can be useful when a particular CD is used often and the speed of access is important.


Please click below to download the OSFMount V3.0.1006 installation package

Download the 64-bit OSFMount software for free!


64-bit Windows 7 SP1, 8, 10, & Server 2008 & 2012 are supported. For 32-bit Windows, please download OSFMount v2 below.

Known issues

#1: On certain Windows systems (mostly Windows server 2016), when using OSFMount, Windows will prevent the OSFMount driver from loading. See the following page for more details, 'Why do I get the error, Error loading OSFMount Driver?'

#2: If you get an Access Denied message during install for the osfmount.sys file, or OSFmount driver is disabled error. Reboot the machine and reinstall. A previous version of the driver was likely still loaded in memory, preventing an update.

Supported File Extensions

OSFMount supports the mounting of the following Windows image file formats:

Image FormatReadWriteMount as RAM driveConvert to Image fileExtendFormat
Raw Image (.IMG, .DD)
Raw CD Image (.ISO, .BIN)
Split Raw Image (.00n)
Nero Burning ROM Image (.NRG)
System Deployment Image (.SDI)
Advanced Forensics Format Images* (AFF)
Advanced Forensics Format Images w/ meta data* (AFM)
Advanced Forensics Format Directories* (AFD)
VMWare Image (.VMDK)
EnCase EWF (.E01)
VHD Image (.VHD)

* The supported version of Advanced Forensics Format is AFFv3 with zlib compression support. Encryption and signatures are not supported.

RAM Drive Benchmarks

These RAM drive benchmarks were taken on a Intel i7-8700K CPU with 32GB RAM DDR4 PC4-19207 in dual channel mode. RAM disk size was 2GB, formatted with FAT32. Typical speeds with large linear blocks are around 10,000 MBytes/sec. With smaller 4K blocks and random access plus queue depth of 1, speed is still a very respectable 1,500 MByte/sec. Benchmarks were taken with PerformanceTest V9.

System requirements

Mount a dmg in windows 10

Win 7 SP1, Win 8, and Win 10
Windows Server 2008, 2012 (Windows Server 2016 has issues)
64bit support (For 32-bit support, please use OSFMount v2)
Users must have administrator privileges.
RAM: 1GB (When mounting large disk images, the more RAM the better)
Disk space: 15 MB of free hard disk space for the installation files.


OSFMount is a free utility.

What's new

Expand all Collapse all

v3.0.1006, 7 May 2020

  • Added support for specifying 'all' to '-v' option in CLI to mount all detected partitions in image file
  • Fixed error when saving a mounted logical drive greater than 4GB to an image file due to 32-bit truncation errors
  • Fixed logical drives not being recognized by Windows Explorer for older O/S (eg. Win 7) when mounting via CLI

v3.0.1005, 29 Jul 2019

  • Added 'physical' and 'logical' command line option to force physical or logical emulation respectively
  • Fixed image files being opened without share permissions

v3.0.1005, 29 Jul 2019

  • Added 'physical' and 'logical' command line option to force physical or logical emulation respectively
  • Fixed image files being opened without share permissions

v3.0.1005, 29 Jul 2019

  • Added 'physical' and 'logical' command line option to force physical or logical emulation respectively
  • Fixed image files being opened without share permissions

v3.0.1004, 24 May 2019

  • Fixed driver not being properly uninstalled when an older version is detected
  • Error message now displayed when system reboot is required after driver installation

v3.0.1003, 10 May 2019

  • Fixed extremely slow disk performance of single part EnCase disk images inadvertently introduced by the previous fix

v3.0.1002, 8 May 2019

  • Fixed extremely slow disk performance of split EnCase disk images
  • Fixed unable to query or dismount drive via CLI when disk is in use
  • Fixed UI draw issues on Win7 Basic Theme

Mount Dmg In Windows

v3.0.1001, 17 Apr 2019

  • Fixed bug with error message displayed when mounting an image in read/write mode using logical emulation
  • Fixed bug with ImageUSB images being mounted as CD

v3.0.1000, 5 Apr 2019

  • Mount a virtual disk using Physical Disk emulation, allowing the disk to be recognized by Windows Disk Management
  • Added Write Cache mode to allow mounting a virtual disk as read-write while preserving the data of the original image file
  • New step-by-step wizard for mounting virtual disks with simplicity
  • NTFS, exFAT and FAT32 now supported when formatting a drive
  • Revised columns in main window with support for physical disk emulation
  • Added support in the OSFMount CLI for mounting using Physical Disk emulation

Mount Dmg In Windows

v2.0.1001, 21 Mar 2018

  • Updated/added warning and error messages when using format option on command line when specifying a ram drive that is smaller than 260MB.
  • Fixed issue with detecting partitions for ImageUSB images.
  • Microsoft signed OSFMount.sys device driver for Windows 10.

v2.0.1000, 08 Mar 2018

  • Compiled with Visual Studio 2017 and Driver Built using WinDDK 10. Consequence of this is that the minimum OS required is now Windows 7 SP1 and we are longer supporting older operating systems XP & Vista.
  • Dramatic speed improvements for blank RAM disks. Speed improvements are a result of,
    • New compiler with better code optimization
    • Forcing the RAM drive to be held in physical RAM (if free space is available on initial mounting). So no swapping to disk. Making it more important than ever to make sure you have sufficient free RAM available.
    • Rewrite of the device driver code to remove overheads in the handling of I/O request packets (IRPs), which read and write data from the RAM drive.
  • At the time of this release, we believe this is the fastest RAM drive software available. Some examples of the speed increases compared to the previous release are 290% faster for 4K IOPS reads and 57% faster linear reads.
  • Updated EWF library to libewf-20160424

v1.5.1018, 18 Jan 2018

  • Fixed issue with not recognizing partitions from large E01 images after mounting.
  • Warning shown when formatting small drives. OSFMount cannot format empty ram drives that are smaller than 260 MB. They may be possible to be formatted using Windows.

v1.5.1017, 12 Dec 2017

  • AAdded option to specify Volume Label when formatting. For Command Line, specify format:'Vol Label' under the options (-o). Example Syntax:
    osfmount -a -t vm -m 'F:' -o format:'RamDisk' -s 1G
  • OSFMount GUI will new auto refresh drive list when images are mounted/unmounted using Command Line Interface.
  • When mounting a new image using the command line and the mount point specified already exists, OSFMount will fail.

v1.5.1016, 27 Nov 2017

  • Added 'Format as FAT32' as a mount option to newly created Empty RAM drives. For Command Line, specify 'format' under the options (-o). Example Syntax:
    osfmount -a -t vm -m 'F:' -o format -s 1G

v1.5.1015, 7 Feb 2014

  • Added VHD image file support. VHD is the Virtual Hard Disk file format for disk images, as used by Micrsoft's Virtual PC. This includes support for Dynamic-size (or sparse) hard disk images. Differential images are not supported. Support was added via libvhdi.
  • Updated EWF library to libewf-20131230
  • Confirmed Win8.1 support

v1.5.1014, 22 Oct 2013

  • Fixed issue with detecting partitions for ImageUSB images
  • Windows dynamic disks are now supported
  • Fixed issue with mounting via OSFMount command line with '-o rw' option
  • Fixed issue with mounting multiple partitions in an image file as writable due to file sharing permissions
  • Fixed issue with mounting multiple partitions in an image file from command line
  • Drive letters 'A' and 'B' can now be used
  • Propagated changes from Imdisk v1.7.5 including some key fixes:
    • Disks with 'lost' drive letters can now be removed
    • Notifications hanging on drive creation and removal

v1.5.1013, 7 Mar 2013

  • Columns and main window are now resizable
  • Added 'DEBUGMODE' command line parameter to OSFMount (GUI) for debug logging
  • Added 'File system (detected)' column in the mounted drive list (for file systems unsupported by OS)
  • APM partition scheme is now supported, along with more robust partition detection

v1.5.1012, 27 Dec 2012

  • Fixed an issue with logical (extended) partitions not being displayed in the list when selecting a partition

v1.5.1011, 09 May 2012

  • Fixed OSFMount driver load error in Win2k3 64-bit
  • OSFMount command line now supports setting drive type (eg. CD, HD, FD) via the -o option

v1.5.1010, 03 Apr 2012

  • Fixed error when mounting multiple drives backed by the same image file. This includes attempting to mount all partitions from an image file as individual drives.

v1.5.1009, 13 Mar 2012

  • Browsing for an image file automatically prompts the user to select a partition
  • Changed 'Select Partition' button to a hyperlink

v1.5.1008, 22 Nov 2011

  • Added option to mount all partitions in an image to separate drive letters with a single click

v1.5.1007, 27 Jun 2011

  • Added option to dismount all drives upon exit of the application
  • Fixed OSFMount logo containing incorrect version number

v1.5.1006, 16 Jun 2011

  • Added command line support via console application
  • Fixed 'Browse' file dialog to show all file extensions

v1.5.1005, 01 Jun 2011

  • Fixed crash when mounting incomplete split files

v1.5.1004, 25 Apr 2011

  • Added support for mounting EnCase/SMART images as read/write
  • Added support for saving disks as EnCase/SMART images ( .E01 format )
  • Fixed issue with mounting larger VMWare images
  • Fixed crash when mounting a large image into RAM

v1.5.1003, 21 Apr 2011

Mountg A Dmg In Windows
  • Fixed issue with mounting images split into a large number of files (eg. AFD, E01)

v1.5.1002, 20 Apr 2011

  • Added read support for EnCase / SMART EWF format images, typically these have the .E01 file name extension

v1.5.1001, 14 Apr 2011

  • Fixed offset/size calculation for images with one partition, which was preventing the mounting of some image files.

v1.5.1000, 16 Mar 2011

  • Fixed issue with virtual disks > 4GB. It is now possible to create RAM drives greater than 4GB and not have them corrupt themselves in 64bit
  • Fixed issue with memory not deallocating properly when dismounted
  • Added support for mounting GUID partition table (GPT) based disks
  • Fixed issue with extended partitions
  • Improved the add drive window to simplify the options.

v1.4.1005, 27 Jan 2011

  • Bug corrected from 1.4.1004 where the mounted drive letter may not appear in Windows Explorer

v1.4.1003, 17 Dec 2010

  • Added support for ImageUSB image files. So images of USB drives from ImageUSB can now be mounted.
  • Fixed issue with mounting on a drive letter that is already being used as a network drive
  • Fixed issue with improperly loading/unloading OSFMount driver
  • Fixed issue with drive icon remaining in Windows Explorer even after dismounting

v1.4.1002, 15 Dec 2010

  • Fixed issue with large physical memory usage for non-raw images
  • Fixed issue with incorrectly detecting MBR
  • Added status window for analyzing images before mounting
  • Optimized loading of AFF images
  • Synced with afflib-3.6.4

v1.4.1001, 8 Dec 2010

  • Error checking for NTFS partition size / image size mismatch and code to try and deal with it
  • Error checking for encrypted AFF images
  • Support for AFF directories (AFD)
  • Updated OSFMount logo

v1.4.1000, 6 Dec 2010

  • Support for split raw, AFF, VMWare images .VMDK, CD ISO images
  • Various minor bug fixes

v1.3.1000, 25 Oct 2010

  • First version based on ImDisk V1.3 by Olof Lagerkvist. Branched to support forensic file formats.

To create a bootable USB drive from a DMG file on Windows, you will need to have the right utility. That's because DMG is not native on Windows. It is the Mac equivalent of an ISO file that has been in use since Apple transitioned from the IMG format with Mac OS X. A DMG file, like ISO, can be used to install macOS operating system or Mac apps. If the Mac computer was broken or crashed and couln't get into the system, but you only have access to a Windows PC, there's still a way to make a bootable macOS install USB on Windows.

This article looks at three applications that you can use to create a bootable USB drive from a DMG file in Windows. All of them have their advantages and disadvantages, which we have highlighted. You can make the best choice for you based on the information provided below. They are in no particular order of preference.

Mount A Dmg In Windows Media Player

DMG Editor - Make Bootable USB from DMG File on Windows


It is not easy to find an user-friendly application when it comes to make bootable macOS Install USB. That's the reason why we spent months to develop such an app. Our latest product, DMG Editor, is a fairly robust application for creating bootable USB from a DMG file. And it works well on both Windows and Mac platforms.

It is packed with modern UI and the steps are very step to follow. After several mouse clicks and wait a couple of minutes, a bootable macOS USB is ready for OS installation or system repair. You won't find any other applications on Windows that is better than UUByte DMG Editor!

Step 1: Download UUByte DMG Editor setup.exe from this website and follow the prompt to install the software on a Windows PC. Currently, it works well on Windows 10, Windows 8 and Windows 7.

Step 2: After installation, UUByte DMG Editor will be opened automatically. And you will see three options on the main screen. At this time, click 'Burn' tab And you will be lead to a new window.

Step 3: Insert an USB drive to Windows PC and the name will show up at the right side of USB icon. If the drive name was wrong, you can click 'Change' button to pick up the right device. Bechamel sauce for mac and cheese. Next, click 'Browse' button to add the .dmg file into the program.

Step 4: When the dmg file is loaded from local hard drive, click 'Burn' button to start burning dmg to USB drive. This process will be finished in less than 10 minutes and you have to wait before you can do anything with the device.

You will be notified when the burning task is completed. Now follow the link listed on the screen to start installing macOS from USB drive


Convert DMG to ISO and Create macOS Boot USB from Windows

Since ISO is a better format for Windows, you can also convert the DMG to the ISO format and then use the ISO disk image to create the bootable USB. Please note that you can't boot your Mac from bootable USB made from an ISO file, which means you'll have to convert it back to DMG prior to that. Still, it's an effective way to create bootable media for a Mac computer. Here's how it works:

Step 1: Once you have the macOS install DMG file on a Windows PC, click on Windows + R to open the run dialog box, and type in CMD, then hit Enter. When the Command Prompt opens up, use the following command to convert the file to ISO:
hdiutil convert /path/sourceimagefile.dmg -format UDTO -o /path/targetmage.iso

Mount Dmg On Windows

Step 2: Download and install UUByte ISO Editor on your PC, insert the USB drive and launch the application.

Step 3: Click Burn button on the main screen and point to the converted ISO file. The drive will be automatically detected and click on Burn icon to burn the ISO to the USB drive.

Once the ISO is burned to the file, you can insert it into a Mac and convert it back into the DMG format. Since you're converting the file twice, there's a chance that the file could get corrupted in the process. If that happens repeatedly, then try this next method.

PowerISO: Make Bootable Mac Install USB on Windows 10/8/7

This Windows utility allows you do create bootable USB from DMG on a PC. You can also edit the DMG or extract the contents, and there's also an option to copy it to a disk. For this particular exercise, we'll show you how to use PowerISO to create a bootable USB drive on Windows without having to convert the disk image into another format like ISO.

Step 1: Download and install the application on your PC.

Mount A Dmg In Windows 7

Step 2: Insert your USB drive and launch PowerISO.

Step 3: In the Tools menu, select 'Create Bootable USB Drive… '. You will need to give admin privileges to the software. Alternatively, you can run the program as admin when you launch it.

Step 4: Select the USB drive in the section called Destination USB Drive.

Step 5: Leave all other default as they are and click on 'Start' to burn DMG to the USB drive.

Mount A Dmg In Windows 10 Pro

You should be able to see the progress, and a new popup will appear when the bootable media is ready. You can now eject the media and use it to run the DMG on a Mac computer.


All of these methods are workable, so select the right one for you based on your level of knowledge and your preference.