MC1506286
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Notice: The October 2026 Scan Cab for Microsoft updates is delayed
Microsoft 365 Message Center Archive by Merill Fernando · Microsoft may not have sent this notice to your tenant.What the notice says
Microsoft’s text, with source markup removedNote: This notice only affects environments where Scan Cab is used to check for Microsoft update compliance. What and why: The Scan Cab for the October 2026 Microsoft security updates is currently delayed and has not yet been released. Rollout schedule: The Scan Cab for the October 2026 Microsoft security updates is currently delayed and has not yet been released. We will communicate an update on Scan Cab availability as more information becomes available. Thank you for your patience. Who is affected: IT administrators who rely on Scan Cab to check for update compliance can monitor our communications for updates. What will happen: Updates on the availability of this month's Scan Cab will be communicated as new information becomes available. Additional information: Learn more about the Scan Cab process: Announcing a smaller WSUS Scan Cab Use Windows Update Agent (WUA) to scan computers for security updates without connecting to Windows Update: Using WUA to Scan for Updates Offline - Win32 apps Documentation on the Catalog Site used to import updates and drivers: WSUS and the Catalog Site
- https://techcommunity.microsoft.com/blog/windows-itpro-blog/announcing-a-smaller-wsus-scan-cab/3980495
- https://learn.microsoft.com/windows/win32/wua_sdk/using-wua-to-scan-for-updates-offline
- https://learn.microsoft.com/windows-server/administration/windows-server-update-services/manage/wsus-and-the-catalog-site
What changed
Between archive captures, newest firstThe archive supplies one version of this notice.
Linked documentation
Microsoft pages the notice links toRelated public evidence
- Public source · 3 Oct 2026MC1486397: An updated version of the September 2026 Scan Cab is available Microsoft 365 Message Center Archive by Merill FernandoShared reference: https://techcommunity.microsoft.com/blog/windows-itpro-blog/announcing-a-smaller-wsus-scan-cab/3980495
- Public source · 14 Sep 2026MC1471885: An updated version of the September 2026 Scan Cab is available Microsoft 365 Message Center Archive by Merill FernandoShared reference: https://techcommunity.microsoft.com/blog/windows-itpro-blog/announcing-a-smaller-wsus-scan-cab/3980495
- Public source · 8 Sep 2026MC1469328: Notice: The September 2026 Scan Cab for Microsoft updates is delayed Microsoft 365 Message Center Archive by Merill FernandoShared reference: https://techcommunity.microsoft.com/blog/windows-itpro-blog/announcing-a-smaller-wsus-scan-cab/3980495
Not confirmed here
What this page cannot tell you- Whether your tenant is affected: this is Microsoft's notice, not a check of your settings.
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