microsoft security intelligence and defender

Repeated KB2267602 installations are normal because Microsoft Defender uses that same KB number for continually updated security intelligence, but repeatedly showing the exact same version—[IP Address]—should be checked against the version actually installed.

Check the installed version

1. Open Windows Security.
2. Select Virus & threat protection.
3. Under Virus & threat protection updates, select Protection updates.
4. Check Security intelligence version.

Alternatively, open PowerShell and run:

Get-MpComputerStatus |
    Select-Object AntivirusSignatureVersion,
                  AntivirusSignatureLastUpdated

Microsoft documents AntivirusSignatureVersion as the value to compare with its current security-intelligence release.^1^

Interpret the result

• If the installed version is newer than [IP Address]: Defender is updating correctly. The repeated history entry does not mean Defender remains stuck on that version.
• If the entries have different version numbers: This is expected. KB2267602 remains the same while its security-intelligence version changes; updates can be released every few hours.^2^
• If the installed version remains [IP Address]: Select Check for updates on the Protection updates page. Defender normally obtains these updates automatically through Windows Update.^3^

As of November 10, 2026 at 5:40 PM, Microsoft’s release page lists [IP Address], which is newer than [IP Address].^4^ Because this value changes frequently, compare against the live page rather than treating [IP Address] as permanently current.

If a manual check still leaves Defender on an older version or produces an error, that—not multiple successful KB2267602 history entries—indicates an update problem requiring further troubleshooting.

References

1. Evaluate Microsoft Defender Antivirus using Group Policy
2. Same update being downloaded and installed repeatedly - Microsoft Q&A
3. Antivirus and antimalware software: FAQ | Microsoft Support
4. Security intelligence updates for Microsoft Defender Antivirus and other Microsoft antimalware