Note: This notice only affects environments where Scan Cab is used to check for Microsoft update compliance.
The Scan Cab for the September 2026 Microsoft security updates is currently delayed and has not yet been released.
Microsoft 365 Message Center ID: MC1469328
Last Modified: September 9, 2026
Category: Message Center
Tags: New feature
Status: Launched
Products & Platforms: Windows
Rollout schedule
We expect to release it as soon as possible and will provide an update 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