OSFMount 3.3.1000

OSFMount 3.3.1000

PassMark Software  ❘ Freeware
Windows
Rank 9 among competitors
Latest Version
3.3.1000
Safe to install

OSFMount: Your Go-To Tool for Virtual Disk Management

Human-built. AI-enhanced.
Peter Salakani

OSFMount simplifies the mounting of disk image files, allowing users to easily create and manage virtual drives for enhanced data access and analysis.
2026 Editor's Rating

OSFMount Review

OSFMount by PassMark Software is a lightweight Windows utility for mounting disk images and creating virtual drives. Offered at no cost, it targets users who need to access or manipulate image files without burning them to physical media, and supports common forensic and disk-imaging workflows.

Key features

  • Disk image mounting: Supports mounting of standard image formats including ISO, IMG, DD, BIN and VHD, exposing image contents as drive letters in Windows for direct file access.
  • Virtual RAM drives: Allows creation of RAM-backed drives for temporary, high-speed storage useful for testing or workloads that benefit from low-latency reads and writes.
  • Encrypted-volume handling: Includes functionality to access BitLocker-encrypted volumes where applicable, enabling examination or data recovery operations on protected images.

Functionality and usability

The application presents an interface intended for straightforward operation, enabling quick mounting and unmounting of images. Its minimal footprint and focused feature set make it suitable as a utility within larger forensic, IT support, or testing toolchains. Creating RAM drives is a direct process suitable for short-lived tasks that require faster temporary storage than physical disks.

Practical applications

  • Accessing files inside disk images without writing to optical media or restoring to physical disks.
  • Using RAM drives for performance-sensitive temporary workspaces and testing scenarios.
  • Examining or recovering data from BitLocker-protected images when decryption is available.

Overview

OSFMount is a Freeware software in the category System Utilities developed by PassMark Software.

The users of our client application UpdateStar have checked OSFMount for updates 251 times during the last month.

The latest version of OSFMount is 3.3.1000, released on 08/12/2026. It was initially added to our database on 12/01/2010. The most prevalent version is 3.1.1003, which is used by 50% of all installations.

OSFMount runs on the following operating systems: Windows.

OSFMount has not been rated by our users yet.

Pros

  • OSFMount is lightweight and does not require installation.
  • It allows users to mount a wide range of disk image formats including ISO, IMG, VHD, and more.
  • The software is free for personal and non-commercial use.
  • OSFMount has a user-friendly interface that makes it easy to use for both novice and advanced users.
  • It offers the option to create virtual disks, RAM disks, and write-protected virtual drives.
  • The program supports command-line options for advanced users.

Cons

  • The free version of OSFMount lacks some advanced features available in the paid version.
  • The software does not have as many customization options as some other similar tools in the market.
  • OSFMount may not be as actively updated or supported as other disk mounting software.

FAQ

What is OSFMount?

OSFMount is a free tool developed by PassMark Software that allows you to mount local disk image files (bit-for-bit copies of an entire disk or disk partition) in Windows with a drive letter.

What file formats can OSFMount mount?

OSFMount can mount disk images in all common formats, including ISO, IMG, BIN, and DD.

Can OSFMount create new disk images?

Yes, OSFMount can create blank disk images of different sizes and formats, such as ISO, DD, and VMDK.

What operating systems is OSFMount compatible with?

OSFMount is compatible with Windows XP, Vista, 7, 8, and 10 (32-bit and 64-bit versions).

Can OSFMount encrypt mounted disk images?

Yes, OSFMount can encrypt mounted disk images using AES-128 or AES-256 algorithms. However, this feature requires a paid license.

Is OSFMount easy to use?

Yes, OSFMount has a user-friendly interface and can be used with just a few clicks. It also comes with a command-line interface for advanced users.

Is OSFMount open-source?

No, OSFMount is not open-source, but it is free to download and use.

Does OSFMount have any limitations?

OSFMount has a few limitations, such as the inability to mount encrypted images that were not created with OSFMount, or the inability to mount disk images in read-only mode. However, these limitations are minor and do not affect most users.

Is there any technical support available for OSFMount?

Yes, PassMark Software provides technical support for OSFMount via email and online forums.

Can OSFMount be used for commercial purposes?

Yes, OSFMount can be used for commercial purposes without any restrictions. However, if you need to use the encryption feature, you will need to purchase a license.


Peter Salakani

Peter Salakani

I'm Peter, a software reviews author at UpdateStar and content specialist with a keen focus on usability and performance. With a background in both software development and content creation, I bring a unique perspective to evaluating and discussing general software topics. When I'm not reviewing software, I enjoy staying updated on the latest tech trends, experimenting with new applications, and finding innovative solutions to everyday tech challenges.

Latest Reviews by Peter Salakani

Installations

251 users of UpdateStar had OSFMount installed last month.

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