TestDisk is a free and open-source data recovery utility that helps users recover lost partitions or repair corrupted filesystems. TestDisk can collect detailed information about a corrupted drive, which can then be sent to a technician for further analysis. TestDisk supports MS-DOS, Windows, Linux, FreeBSD, NetBSD, OpenBSD, SunOS, and MacOS. TestDisk handles non-partitioned and partitioned media. In particular, it recognizes the GUID Partition Table (GPT), Apple partition map, PC/Intel BIOS partition tables, Sun Solaris slice and Xbox fixed partitioning scheme. TestDisk uses a command line user interface. In one test TestDisk recovered deleted files with 97% accuracy.
TestDisk can recover deleted partitions, rebuild partition tables or rewrite the master boot record (MBR). EFI GPT is also supported.
TestDisk retrieves the LBA size and CHS geometry of attached data storage devices (i.e. hard disks, memory cards, USB flash drives, and virtual disk images) from the BIOS or the operating system. The geometry information is required for a successful recovery. TestDisk reads sectors on the storage device to determine if the partition table or filesystem on it requires repair (see next section).
What is TestDisk?
TestDisk is an open-source backup & recovery program for Windows from CGSecurity. It ranks 12th by popularity among backup & recovery in this catalogue. It is written in C. Besides Windows, it is available for cross-platform.
Installation and requirements
Official installers exist for 64-bit as Portable. The main installer is 30.3 MB. It runs without installation (portable).
Updates and version history
The current version is 7.3, released on November 29, 2025. 3 versions are listed since May 4, 2023, each with links to its own installer files. That is about 1.2 releases a year.
Popularity and file types
The Chocolatey package has been downloaded 9,105 times. Wikipedia has an article about it in 13 of our languages. Similar programs include restic, Recuva and Veeam Agent for Microsoft Windows.
Pros / Cons
Pros
- Open source: the code can be inspected and built by anyone
- Portable: runs without installation
- Also runs on cross-platform
Cons
- No native ARM64 build
In short: TestDisk is an open-source backup & recovery tool for 64-bit PCs.
Screenshots
Is TestDisk safe to download?
- The file is served by cgsecurity.org, the publisher’s own domain
- The download link uses HTTPS
- A SHA256 hash is published, so you can verify the file:
D96E326BE57EAEA5408AE6EAD59802890632B76E4EB82298CF2F9854B7702CC4· Open the VirusTotal report for this hash - The link answered when we last checked it (October 22, 2026)
- The source code is public
- ExeAtlas does not host, wrap or modify installers
Related guide: How to check a file’s SHA256 hash on Windows
Recent versions
All 3 versions ›3 versions over 3 years · about 1.2 a year
| Version | Date | Size | Files |
|---|---|---|---|
| 7.3Latest | November 29, 2025 | 30.3 MB | 64-bit ZIP |
| 7.2 | February 2, 2024 | 27.4 MB | 64-bit ZIP |
| 7.1 | May 4, 2023 | 21.5 MB | 32-bit ZIP |
Install from the command line
Silent install ›winget install --id CGSecurity.TestDisk -echoco install testdisk -yscoop install extras/testdiskRelated guide: How to use winget: install and update apps
Also for other systems
brew install testdiskInformation
- Publisher
- CGSecurity
- Category
- Backup & recovery
- Licence
- GPL-2.0-or-later
- Price
- Free
- Written in
- C
- Requires
- Windows 11 / 10
- Architecture
- 64-bit
- Installer
- Portable
- Other platforms
- cross-platform
- Version
- 7.3
- Released
- November 29, 2025
- Added to the catalogue
- May 4, 2023
- Versions listed
- 3
- Updates / year
- 1.2
- Chocolatey downloads
- 9,105
- Website
- cgsecurity.org
- winget ID
- CGSecurity.TestDisk
- Chocolatey package
- testdisk
- Scoop package
- extras/testdisk
Ratings and reviews
No reviews yet. Be the first to rate it.
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Frequently asked questions
Is TestDisk free?
Yes. TestDisk is open-source software under the GPL-2.0-or-later licence.
Is TestDisk safe to download?
The download comes from cgsecurity.org, which belongs to the publisher; ExeAtlas does not host or change the file. Compare its SHA256 hash with the one shown here, or open the VirusTotal report for that hash.
How do I install TestDisk with winget?
Open PowerShell or Windows Terminal and run the winget command shown on this page. winget downloads the official installer and checks its SHA256 hash before running it.
Does TestDisk run on ARM (Windows on Arm)?
There is no ARM64 build; Windows 11 on Arm can run the 64-bit version through emulation.
Where can I download an older version of TestDisk?
The versions page lists all 3 versions with links to their official installer files, back to May 4, 2023.
Can I use TestDisk without administrator rights?
Yes, it is portable: unpack and run it.
What are alternatives to TestDisk?
restic, Recuva, Veeam Agent for Microsoft Windows, UrBackup Client and TeraCopy. The alternatives page compares them.
