Download Kairos Optimizer

Cryptographically signed, with published hashes and step-by-step verification. No telemetry.

Installer (recommended)

Stable release — creates Start Menu shortcuts (including new Repair option) and enables clean upgrades.

Download Kairos (Installer)

Checksums: checksums.txt (latest) | resolving…

Looking for a previous version? See legacy links.

Portable (no install)

Extract and run. Ideal for offline or admin‑restricted environments.

Download Kairos (Portable ZIP)

Checksums: checksums.txt (latest)

Troubleshooting & diagnostics

If the installer exits immediately, extract the Portable ZIP and run collect_and_package.bat as Administrator. This will produce a single diagnostics zip you can attach to support requests. See the portable README for details.

Recommended by EthicOps

Encrypt your connection. No logs. No ads. Just privacy.

Verify the download (SHA-256)

After downloading, verify integrity matches our published hash.

Published hashes (update when you publish a new build):

Installer: SHA256= …
Portable : SHA256= …

View complete checksums.txt

Windows PowerShell:

Get-FileHash .\Kairos_Setup_v?.?.?.exe -Algorithm SHA256

macOS / Linux:

shasum -a 256 Kairos_Portable_v?.?.?.zip

Verify the signature (PGP)

Import our public key and verify the .asc signature.

# 1) Save our public key to EthicOps-publickey.asc
# 2) Import
gpg --import EthicOps-publickey.asc
# 3) Verify
gpg --verify Kairos_Setup_vX.Y.Z.exe.asc Kairos_Setup_vX.Y.Z.exe
# or for the portable zip:
gpg --verify Kairos_Portable_vX.Y.Z.zip.asc Kairos_Portable_vX.Y.Z.zip

Download our public key: EthicOps-publickey.asc

Show EthicOps public key

-----BEGIN PGP PUBLIC KEY BLOCK-----
REPLACE_WITH_YOUR_PUBLIC_KEY
-----END PGP PUBLIC KEY BLOCK-----

Tip: publish your key fingerprint here and on your social profiles for cross-verification.

Purchase / Donate

Human Privacy Rights Alliance — 2025 Campaign

Minnesota-born effort to protect everyday people from cyberstalking and organized harassment with practical tools, education, and pro-bono help.

Ship and maintain Kairos performance/privacy tool (free core, paid extras).
Publish step-by-step defense guides and no-telemetry utilities.
Offer limited pro-bono triage for victims (evidence capture & hygiene).
Community workshops: OPSEC, phishing resistance, device hardening.

Note: Donations are currently not tax-deductible. 501(c)(3) status is a future goal.

Release notes

v1.0.0 — initial release. Profiles for Gaming, Recording, and Privacy-Max; service hardening presets; one-click rollbacks.

Requirements

Windows 10/11 x64
Administrator rights (to apply certain policies)
~50 MB free disk space

Mirrors & integrity

If a mirror is used, verify the file against the hashes above. We never distribute via random file-sharing sites.

Legacy links & redirects

Old installer/portable filenames (KameHa_*.exe, KameHa_*.zip) are deprecated and the v1.0.0 installer binary has been removed to avoid stale downloads. Redirects now forward legacy names to the current Kairos release.

Legacy installer name now redirects → Kairos_Setup_latest.exe
Legacy portable name now redirects → Kairos_Portable_latest.zip

Tip: Always verify the checksums.txt and consider GPG signature verification before running a new version.

Privacy & support

No telemetry, ads, or hidden network calls. If you find a bug, email support@ethicops.org.