Microsoft Advises Users to Ignore False 'Antivirus is Turned Off' Alerts
Recent Defender updates triggering incorrect security status notifications

Key Takeaways
- Microsoft has issued guidance asking users to ignore false 'Antivirus is turned off' alerts.
- The alerts are caused by recent Windows Defender update installations and are not indicative of actual security status.
- No active exploitation of the issue has been reported.
- Microsoft is working on a fix; users should ensure systems are fully updated.
- The false notifications may lead to delayed security actions or unnecessary troubleshooting.
Quick answers
- What happened?
- Microsoft has instructed Windows users to disregard alerts indicating that Windows Defender Antivirus has been turned off. The alerts are false positives arising from recent Defender update installations and do not reflect the actual security state of the system. The company is actively working on a fix.
- Which products are affected?
- Windows Defender, Windows Security
- What should defenders do?
- Users should ignore the alerts and ensure Windows is fully updated. Microsoft is working on a fix; monitor official channels for resolution.
Microsoft has asked customers to ignore incorrect alerts that Windows Defender Antivirus has been turned off after installing the latest Defender updates. The notifications, which appear in Windows Security, falsely indicate that real-time protection is disabled. Microsoft confirmed that the issue stems from recent update installations and does not reflect the actual status of the antivirus solution. The company stated that it is working on a resolution and advised users to ensure their systems are fully updated while monitoring official channels for further information. No active exploitation of this issue has been reported. The false alerts may lead users to incorrectly believe their real-time protection is disabled, potentially resulting in delayed security actions or unnecessary troubleshooting. Microsoft recommends that users keep Windows up to date and follow official guidance for resolution.
Security Details
False positive alerts in Windows Security indicating Defender Antivirus is turned off, triggered by recent Defender update installations. The issue does not reflect actual system security state.
Affected products
Windows Defender, Windows Security
Mitigation
Users should ignore the alerts and ensure Windows is fully updated. Microsoft is working on a fix; monitor official channels for resolution.
Sources
BleepingComputer
Microsoft asks users to ignore 'Antivirus is turned off' errors
Aug 31, 2026 · 08:29
Original link
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