Mount Any Disk Image as a Virtual Drive on Windows — Instantly
OSFMount is a free, lightweight tool that mounts ISO, IMG, BIN, VHD, VMDK, and other disk image formats as virtual drives on Windows. Zero bloat, zero cost.
100% Free to UseNo Account RequiredWindows 7–11 CompatiblePortable Option Available
20+
Supported Image Formats
5M+
Downloads Worldwide
Win 7–11
Full Compatibility
4.7/5
Average User Rating
About OSFMount
A Free Virtual Drive Tool Built for Power Users and IT Pros
What Is OSFMount?
OSFMount is a free Windows application that lets you mount disk image files as virtual drives. It supports over 20 image formats including ISO, IMG, BIN, VHD, VMDK, RAW, and more — giving you instant read/write access without burning a disc or extracting files.
Who Is It For?
OSFMount is built for IT professionals, forensic analysts, developers, and power users who work with disk images regularly. It's also perfect for home users who want to open software ISOs, retro game images, or backup archives without a physical drive.
Why It Was Created
Traditional disc burning is slow, wasteful, and increasingly irrelevant. OSFMount was built to give direct, instant access to disk image contents — making software testing, data recovery, and archive management dramatically faster.
OSFMount v3.1.1002
PassMark Software
✔ Mounting image.iso
✔ Drive letter assigned: E:\
✔ File system: ISO 9660
✔ Read/Write mode: Enabled
Image mounted successfully!
Status
Active
Mode
Read/Write
Format
ISO 9660
Drive
E:\
Core Features
Everything OSFMount Does for Your Disk Images
Each feature activates automatically once enabled, with full manual control for advanced users who need to fine-tune their setup.
💿
20+ Image Formats
Supports ISO, IMG, BIN, VHD, VMDK, RAW, E01, AFF, and many more — covering virtually every disk image type you'll encounter.
✏️
Read & Write Mode
Mount images in read-only mode for safety or writable mode for full editing — including creating RAM disks for ultra-fast temporary storage.
🚀
RAM Disk Creation
Create blazing-fast RAM-based virtual drives for temp files, browser caches, and compilation tasks — speeds up workflows dramatically.
🔍
Forensic Image Support
Natively handles forensic formats like E01 and AFF, making it a go-to tool for digital forensics and data recovery professionals.
📦
Partition Mounting
Mount individual partitions from multi-partition image files directly, giving granular access to complex disk layouts.
💾
Command-Line Interface
Full CLI support for scripting, automation, and batch mounting across enterprise and developer environments.
🔒
Write Protection
Toggle write protection per mounted drive to prevent accidental modification of valuable or forensic disk images.
🖥️
System-Wide Integration
Mounted drives appear as real drive letters in Windows Explorer, compatible with every application that uses standard file access.
⚡
Lightweight & Portable
Minimal system footprint with a portable version available — runs without installation from a USB stick or network drive.
Get OSFMount
Download OSFMount Free for Windows
Get the official OSFMount installer with all features included — completely free, with no time limits or account required.
Download the latest OSFMount release by PassMark Software. Includes the GUI installer and portable executable for direct use without installation. All image format support, RAM disk creation, and CLI tools are included at no cost.
The setup takes under two minutes. Follow these five steps to get OSFMount running and mounting your first disk image.
1
Download the Installer
Click the download button above to get the latest OSFMount setup file (.exe) for Windows. The file is small and downloads in seconds on most connections.
2
Run the Setup File
Open the downloaded file from your Downloads folder. If Windows SmartScreen shows a prompt, select "More info" then "Run anyway" — this is normal for independent software installers.
3
Follow the Setup Wizard
Accept the license agreement, choose an installation folder (the default works fine), and click "Install." The process completes in under a minute.
4
Launch OSFMount
Open OSFMount from your desktop shortcut or Start menu. The GUI loads instantly and shows you all currently mounted drives.
5
Mount Your First Image
Click "Mount New Virtual Disk," browse to your image file, choose a drive letter and mount options, then click OK. Your image is immediately accessible in Windows Explorer.
Compatibility
Where OSFMount Works
OSFMount supports a wide range of Windows versions and image formats used across IT, forensics, and home use.
Platform / Format
Support Status
Notes
Windows 11
Fully Supported
Native installation, no compatibility mode needed.
Windows 10
Fully Supported
Most widely tested platform for OSFMount.
Windows 8 / 8.1
Supported
Works with standard Windows drivers.
Windows 7
Supported
Requires up-to-date storage drivers.
macOS / Linux
Not Supported
OSFMount is built exclusively for Windows.
ISO / IMG / BIN
Fully Supported
Most common formats, instant mount.
VHD / VMDK / VHDX
Fully Supported
Virtual machine disk images supported natively.
E01 / AFF (Forensic)
Fully Supported
Full forensic image format compatibility.
RAM Disk Creation
Supported
Create RAM-based virtual disks for speed.
Encrypted Images
Partial
Some encrypted containers may require decryption first.
Honest Review
OSFMount Pros & Cons
A balanced look at where OSFMount excels and where it has limitations, so you know what to expect before installing.
✓ Pros
Completely free with no time-limited trial
Supports 20+ disk image formats
Forensic format support (E01, AFF) built-in
RAM disk creation for ultra-fast storage
Portable version available — no install needed
✗ Cons
Windows-only — no macOS or Linux version
UI looks dated compared to modern tools
Some encrypted formats need extra steps
Limited documentation for advanced CLI use
Learning curve for RAM disk configuration
Use Cases
Who Gets the Most Out of OSFMount
OSFMount adapts to a wide range of professional and personal use cases through its flexible format support and mounting options.
🔎
Forensic Analysts
Mount E01 and AFF forensic images directly for evidence review without altering original data.
💻
IT Professionals
Deploy and test software from ISO images, manage system backups, and access VHD/VMDK files instantly.
🎮
Retro Gamers
Mount classic game disc images in BIN/CUE or ISO format and play them without physical media.
⚙️
Developers
Create RAM disks for build caches, use CLI mounting in CI/CD pipelines, and work with VM disk images.
User Reviews
What People Say After Using OSFMount
Feedback from IT professionals, forensic analysts, and everyday users across different use cases.
★★★★★
"The forensic image support alone makes this worth installing. I can mount E01 files directly and browse them like a regular drive. Essential tool."
DK
David K.
Digital Forensics Analyst
★★★★★
"I use the RAM disk feature to speed up my build pipeline. Compilation times dropped significantly. OSFMount is now a permanent part of my dev setup."
SR
Sara R.
Software Developer
★★★★☆
"Works perfectly for mounting classic game ISOs. The UI is basic but it does exactly what it says — and the portable version means no installation fuss."
MT
Marco T.
Retro Gaming Enthusiast
FAQ
Frequently Asked Questions
Answers to the questions people ask most before downloading OSFMount.
What is OSFMount? ▼
OSFMount is a free Windows application by PassMark Software that mounts disk image files as virtual drives. It supports over 20 formats including ISO, IMG, BIN, VHD, VMDK, E01, and more.
Is OSFMount free to download? ▼
Yes. OSFMount is completely free to download and use, with all format support, RAM disk creation, and CLI features available at no cost and no registration required.
What image formats does OSFMount support? ▼
OSFMount supports ISO, IMG, BIN, CUE, VHD, VMDK, VHDX, RAW, E01, AFF, and many more. It covers virtually every common disk image format used in consumer and professional contexts.
Can I create a RAM disk with OSFMount? ▼
Yes. OSFMount can create RAM-based virtual drives that operate at memory speeds. These are ideal for temporary files, browser caches, and build artifacts where extreme speed matters.
Does OSFMount work on Windows 11? ▼
Yes. OSFMount is fully compatible with Windows 11, 10, 8, and 7. No compatibility mode or workarounds are needed on modern Windows versions.
Is there a portable version of OSFMount? ▼
Yes. OSFMount offers a portable version that can be run directly from a USB stick or network path without requiring a full Windows installation.
What's the difference between OSFMount and Windows built-in ISO mounting? ▼
Windows 10/11 can natively mount ISO files, but OSFMount goes further with support for 20+ additional formats, RAM disk creation, write mode, forensic images, partition mounting, and a full command-line interface.
Can OSFMount handle forensic disk images? ▼
Yes. OSFMount natively supports forensic formats including EnCase E01 and AFF (Advanced Forensics Format), making it a standard tool in digital forensics and data recovery workflows.
Ready to Mount Any Disk Image Instantly?
Download OSFMount free and get instant access to ISO, VHD, IMG, and forensic image files — no burning, no extracting, no cost.
OSFMount.io is an independent resource website dedicated to providing clear, accurate guides and documentation for OSFMount — the free disk image mounting tool by PassMark Software.
We are not affiliated with PassMark Software. Our goal is to help users install, configure, and troubleshoot OSFMount quickly, whether they are IT professionals, digital forensics analysts, developers, or home users.
Our Mission
To provide the clearest, most practical guides available for OSFMount — covering installation, advanced features, CLI usage, forensic workflows, and comparisons with alternative tools.
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