Microsoft has fixed a bug in Windows Defender that caused access violation errors and service crashes after a recent security update on some Windows 10 and Windows 11 systems. The issue triggered “Threat service has stopped. Restart it now” messages, and Microsoft says the correction is included in Defender signature update version 1.457.236.0 or later. #WindowsDefender #MicrosoftDefender
Keypoints
- Windows Defender crashed on some systems after a recent security update.
- Affected users saw 0xc0000005 access violation errors and threat service failure messages.
- Quick and full scans could fail until the Defender service was restarted.
- Microsoft confirmed the issue and released a fix in a new signature update.
- Users should install Defender Antivirus signature update 1.457.236.0 or later.