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LC9DEFENCE
Download Free

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Download LC9 Defence

One installer for LC9 Free and LC9 Premium. Premium is switched on by signing in from the app.
The public download isn't open yet. LC9 Defence works today, but we won't offer the installer until it carries a verified Microsoft Authenticode signature, so you can be sure it really comes from us. This page will show the download link, checksum and signature details at release.
Version
0.1.0 (Developer preview)
Release date
Not yet released
File
LC9DefenceSetup.exe
File size
Published with the release
Supported systems
Windows 11, Windows 10 (22H2)
SHA-256 checksum
Published with the release
Digital signature
Published with the release

Installing

  1. Download LC9DefenceSetup.exe.
  2. Optional: check it's genuine (see right).
  3. Double-click the file and follow the steps. No administrator rights are needed for LC9 Free.
  4. Open LC9 Defence from the Start menu and click SCAN NOW.

Uninstalling

Settings → Apps → Installed apps → LC9 Defence → Uninstall. You'll be asked whether to keep or delete anything in quarantine.

Check the installer is genuine

Right-click the file → Properties → Digital Signatures. The signer must match the name shown above. If there's no signature tab, or the name is different, don't run it.

To check the SHA-256 checksum, open PowerShell in your Downloads folder and run:

Get-FileHash .\LC9DefenceSetup.exe -Algorithm SHA256

The result must match the checksum above exactly.

Release notes: 0.1.0

  • First version of LC9 Free: Quick, Full, folder, file and USB scans.
  • Known-threat detection from signed definitions, plus suspicious-file detection.
  • Encrypted quarantine with restore and permanent delete.
  • Scan history, and signed definition updates with automatic recovery from failed updates.