Protection status
See Microsoft's Defender real-time protection and Windows firewall status in readable cards.
A RIGHT FIRST TIME UK SERVICE · FREE FOR MEMBERS
Protect your PC with RFTUK Guardian.
RFTUK Guardian is an official Right First Time UK service, free for members. See important Windows security checks, run Microsoft Defender scans, get clear alerts and monitor your devices — all in one easy-to-use companion.
✓ Free for Right First Time UK members✓ Windows security monitoring✓ Simple device pairing
Early-access software. Uses Microsoft Defender to scan; does not replace antivirus protection or guarantee that a device is threat-free.
Guardian desktop appClear checks · Defender scans · AlertsDesign preview — not a live virus scan or test result
A RIGHT FIRST TIME UK SERVICE · FREE FOR MEMBERS
How to activate Guardian
Guardian is offered at no additional charge to Right First Time UK members. Device activation is being designed to check an active RFTUK membership before issuing a licence. The membership verification connection still requires testing before public activation is enabled.
1
Sign in as a member
Access your RFTUK account. Membership verification must confirm that your membership is active.
2
Get an activation key
After verification, create a short-lived device pairing code for your PC. Keys are single use.
3
Install & connect
Download the test ZIP, scan it, extract it, then use INSTALL-GUARDIAN.cmd. Reconnect using your saved pairing or enter a new one-time code.
Free for RFTUK members — currently in early access. Member licence checks are not live yet. The existing Guardian owner account can test pairing; new members will need their active membership verified when public activation launches.
CLEAR SECURITY INFORMATION
Everything important in one place
Guardian shows the status Windows reports, clearly highlights missing information and helps you review problems.
Quick & full scans
Run real Microsoft Defender scans or choose a folder. View detailed results in Windows Security.
Alerts & recent history
Review local warnings, recent detection counts, scan status and connection problems.
Simple device pairing
Use a copy-and-paste activation code. Windows privately stores the resulting device credential.
Automatic reports
Set Guardian to send summaries every 10 minutes while the Windows account is signed in.
Phone-friendly dashboard
View connected PC reports from your phone using the secure Guardian web console.
Design illustration — not a live security resultFREE FOR RIGHT FIRST TIME UK MEMBERS
Colourful, clear and easier to use.
This Right First Time UK service gives members clear security information at no additional Guardian charge. Large controls, a brighter security overview, scan buttons and simple pairing use the Guardian logo and icon.
The previous unsigned Windows EXE was withdrawn following a malware warning. A source-based Windows test ZIP is available instead. It requires Python 3.9 or newer with Tkinter and manual extraction. It has not been independently certified as malware-free. Mobile devices can currently use the web dashboard, not a native antivirus app.
Safety notice: A previous self-extracting Windows EXE was flagged by antivirus and has been withdrawn. Scan the new test ZIP with Microsoft Defender before extracting. If any detection appears, do not run it. A normal code-signed installer will only be offered after verification and Windows testing.
↓ Download Windows source test ZIP Open your Guardian web console →Extract the ZIP, then open WINDOWS-APP/INSTALL-GUARDIAN.cmd. Python 3.9+ with Tkinter is required. This is for owner testing only.
PHONE SUPPORT
Use Guardian on your phone too.
The phone experience is currently a mobile-friendly web app. It shows your enrolled device reports and works well on smaller screens. It is not yet a native Android or iPhone antivirus app.
Open on Android
Open the Guardian console in Chrome and add it to your Home screen for a more app-like experience.
Open on iPhone
Open the Guardian console in Safari and choose Share → Add to Home Screen.
What it can do
See alerts, reports, scans and device status from your phone. Full native Android and iPhone security apps are still to be built and tested.
HELP & IMPORTANT DETAILS
Answers before you install
Is Guardian itself an antivirus?
Guardian is a monitoring companion that uses your installed Microsoft Defender scanner. Keep Windows Security and system updates enabled. It does not replace antivirus software.
Is RFTUK Guardian free for members?
Yes. RFTUK Guardian is a Right First Time UK service offered free to members, with no additional Guardian membership fee. It is currently in early access; automated membership verification and general member licence activation are not live yet.
How does the licence or activation key work?
During testing, one-time activation codes pair a PC to a Guardian account. Broader member-only licences will require a verified active RFTUK membership and an authenticated membership integration. That final membership link is not yet live.
Will Guardian run with the window closed?
If you enable Windows Task Scheduler reporting, checks can run every 10 minutes while your Windows account is signed in. Notifications depend on Windows settings.
Can Guardian scan my phone?
No. The phone version is an installable browser-based device-status dashboard, not a native Android/iPhone antivirus scanner.
Is Windows 10 supported?
The app can run on Windows 10, but ordinary Windows 10 support ended in 2025. You must independently verify Extended Security Updates eligibility or upgrade options.