About SymCrypt
Unit test program for the core cryptographic function library currently used by Windows.
SymCrypt 103.13.0
Unit test program for the core cryptographic function library currently used by Windows.
What's new in 103.13.0
This release includes the following binary packages:
- Windows AMD64 (x86-64) and ARM64
- Generic Linux AMD64 (x86-64) and ARM64 - built and validated on Ubuntu. Should run on any distro with glibc >= 2.25.
- OpenEnclave AMD64 (x86-64)
See CHANGELOG.md for release notes.
Technical details
| Publisher | Microsoft |
|---|---|
| Version | 103.13.0 |
| Release date | 2026-08-12 |
| License | MIT |
| Installer type | zip |
| Architecture | x64, arm64 |
| Package ID | Microsoft.SymCryptUnitTest |
Install SymCrypt from the command line
- Install with Windows Package Manager
winget install --id=Microsoft.SymCryptUnitTest -e- Update to the latest version
winget upgrade --id=Microsoft.SymCryptUnitTest -e- Uninstall
winget uninstall --id=Microsoft.SymCryptUnitTest -e
SymCrypt version history
103.8.0 Jan 29, 2025
Frequently asked questions
Is SymCrypt free?
Yes. SymCrypt is free and open-source software released under the MIT license.
What is the latest version of SymCrypt?
The latest version is 103.13.0, released on Aug 12, 2026.
Is it safe to download SymCrypt?
The download button links to the official installer published on github.com, the same file Windows Package Manager installs. You can verify the downloaded file by comparing its SHA-256 checksum with 90ea7631331d23a43e0abc7f7af89b44bda67cfa183a70a8b76d988d9d3036b8.
Which Windows versions does SymCrypt support?
SymCrypt runs on Windows and is available for 64-bit (x64), ARM64 systems.
How do I uninstall SymCrypt?
Open Settings › Apps › Installed apps, find SymCrypt and select Uninstall. From the command line, run winget uninstall --id=Microsoft.SymCryptUnitTest -e.
Is there a portable version of SymCrypt?
Yes. SymCrypt is available as a portable ZIP archive (symcrypt-windows-amd64-release-103.13.0-286762b7.zip, 64-bit (x64)) that runs without installation. Copy it to any folder or USB drive and run it from there.
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