01
Known threats
Instantly recognises malware that has been seen before.
AI antivirus for Windows 10 & 11
Malware stops here.
Four detection engines and an AI core check every file before it runs. Viruses, ransomware and hidden scripts are blocked. The apps you trust carry on as normal.
- ~2 ms
- per file scan
- 0
- false alarms in testing
- Free
- during beta
VirusesRansomwareTrojansSpywareMalicious macrosPowerShell attacksFileless malwareWormsKeyloggersRootkit droppersVirusesRansomwareTrojansSpywareMalicious macrosPowerShell attacksFileless malwareWormsKeyloggersRootkit droppers
01Protection
Layers of defence that work together.
From everyday downloads to attacks that never touch your disk, GPTDefend covers every way threats get in.
Every file checked, instantly.
GPTDefend inspects files the moment they're opened or saved, so malware is blocked before it gets a chance to run.
- Scans on open and on save
- Stops dangerous apps from starting
- Files already checked clear instantly
Live file activityMonitoring
Quarterly_report.xlsxOpened · DownloadsSafe
setup_x64.exeLaunch attempt · TempBlocked
holiday_photos.zipSaved · DesktopSafe
No hiding in scripts or memory.
Some attacks never save a file. GPTDefend works with Windows to see scripts and macros as they actually run, even when they've been disguised.
- PowerShell, JavaScript and VBScript
- Malicious Office macros
- Attacks that live only in memory
PS C:\Users\dana> .\update_helper.ps1 Loading module… ■ GPTDefend blocked this script reason hidden download-and-run action stopped before execution
Ransomware stopped in its tracks.
GPTDefend watches how programs behave, not just what they look like. When something starts encrypting your files or abusing built-in tools, it's shut down.
- Detects mass file encryption as it starts
- Spots attackers misusing Windows tools
- Tracks suspicious chains of processes
Behaviour monitor1 stopped
explorer.exe
winword.exe
cmd.exeunusual
locker.exeterminated
Nothing deleted by surprise.
Blocked files are safely locked away, not erased. Review what GPTDefend caught, restore anything in a click, and choose which apps to always trust.
- Secure quarantine, one-click restore
- An allow list for apps you trust
- A clear alert every time GPTDefend acts
Quarantine2 items
invoice_0917.jsScript threat · today
setup_x64.exeMalware · today
my_build_tool.exe allowedAdded to trusted apps
02AI detection core
Four engines. One verdict.
GPTDefend never trusts a single signal. It blocks only when the evidence adds up, so real threats are caught and your everyday software is left alone.
02
Pattern rules
Catches new variants of familiar attack tools.
03
Machine learning
Judges brand-new files it has never seen.
04
Heuristics
Flags traits that trustworthy apps simply don't have.
03Performance
2ms
Security you'll never feel.
That's how long GPTDefend takes to check a typical file, far quicker than a blink. Files it has already cleared are skipped instantly, so games, calls and builds run exactly as before.
Try it on your PC04Built in
Everything you need. Nothing you don't.
No bloat, no upsell pop-ups. Just the tools that keep your PC safe.
So fast you'll forget it's there
Most files are checked in about two milliseconds. Files already cleared are skipped instantly.
Calm alerts
You only hear from GPTDefend when it acts, and every alert explains why.
Quiet tray app
Your status at a glance from the Windows tray.
Command-line tools
Scan, manage and automate GPTDefend across many machines.
Zero false alarms in testing
GPTDefend checked 20,000 Windows system files without flagging a single one, so your everyday apps just work.
05Safe updates
An update will never take your PC down.
One bad security update can crash millions of computers at once. GPTDefend was designed from day one so that can't happen to you.
- 01
Tested first
Checked against a large library of clean Windows files before release.
- 02
Versioned
Every update is numbered, so you know exactly what's running.
- 03
Rolled out gradually
A small group gets it first, then everyone else.
- 04
Reversible
Roll any update back in place, with no reinstall.
06Plans
Pick your protection. Free in beta.
Every plan includes the full GPTDefend detection engine. Pricing is announced at launch, and beta users hear first.
GPTDefend Personal
$0/ beta
Get Personal - Real-time AI protection
- Ransomware defence
- Script & fileless protection
- Quarantine & restore
- Tray app & alerts
GPTDefend FamilyRecommended
$0/ beta
Get Family - Everything in Personal
- One licence for every PC
- Shared trusted-apps list
- Alerts for every action
GPTDefend Business
$0/ beta
Get Business - Everything in Family
- Command-line management
- Staged update rollouts
- Version tracking for audits
- Early access to v2
07Protection
Full protection, ready to install
Everything on this page, running alongside Windows Security.
- Real-time AI protection with four engines
- Ransomware, script and fileless attack defence
- Quarantine, allow list and tamper protection
- Safe, reversible updates
No. GPTDefend runs happily alongside Windows Security today. Once GPTDefend v2 becomes your primary antivirus, Windows switches its own antivirus off automatically.
It's designed not to. GPTDefend only blocks when several engines agree, and it raised zero false alarms across 20,000 Windows system files in testing. If it ever gets something wrong, restore the file and add it to your trusted apps.
You shouldn't notice it. A typical file is checked in about 2 ms, and files that have already been checked are skipped instantly.
Updates are tested before release, rolled out gradually, and can be rolled back in place. A bad update can't reach every machine at once.
Yes. GPTDefend includes command-line tools for scanning and administration, so IT teams can script and automate it across a fleet.
Get protected in under a minute.
Free while in beta. No card, no catch, and it uninstalls cleanly.