False virus protection alerts on Windows 11 29531.1000

Restart your computer after disabling tamper protection in Windows Security Center, then re-enable the feature to clear the error alert.

It sounds like you're experiencing false "Turn on virus protection" alerts after updating to Windows 11 build 29531.1000, despite having security features enabled. This is a known issue that can occur due to temporary glitches or bugs introduced in new builds.

I haven't seen this issue yet, still I highly recommend to report this via Feedback hub.