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OSFMount (Install)


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This package was approved by moderator Pauby on 6/26/2019.


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Screenshot of OSFMount

OSFMount is a free utility designed for use with PassMark OSForensics


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.


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To install OSFMount (Install), run the following command from the command line or from PowerShell:

C:\> choco install osfmount

To upgrade OSFMount (Install), run the following command from the command line or from PowerShell:

C:\> choco upgrade osfmount


  • tools\chocolateyinstall.ps1 Show
    $ErrorActionPreference = 'Stop'
    $packageName = 'osfmount' 
    $toolsDir    = "$(Split-Path -parent $MyInvocation.MyCommand.Definition)"
    $url64       = ''
    $checksum64  = 'CAB9D41CADF68A21BE72C80CE998B08AFBB696CF7C54467BDE4A6036D40CF74E'
    $packageArgs = @{
      packageName    = $packageName
      unzipLocation  = $toolsDir
      fileType       = 'EXE' 
      url64bit       = $url64
      checksum64     = $checksum64
      checksumType64 = 'sha256'
      softwareName   = 'OSFMount*' 
    Install-ChocolateyPackage @packageArgs

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This package has no dependencies.

Package Maintainer(s)

Software Author(s)

  • PassMark® Software Pty Ltd


Copyright (C) PassMark Software


Version History

Version Downloads Last updated Status
OSFMount (Install) 3.0.1001 1432 Thursday, April 25, 2019 approved
OSFMount (Install) 2.0.1001 1005 Sunday, April 1, 2018 approved
OSFMount (Install) 1.5.1018 326 Sunday, January 21, 2018 approved
OSFMount (Install) 1.5.1015 591 Tuesday, February 21, 2017 approved

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