OS SecurityBleeping Computer
4.0 — MEDIUM
Microsoft fixes Windows update failures linked to WUSA installer
Microsoft has fixed a known issue that caused Windows updates released since May 2025 to fail when installed via the Windows Update Standalone Installer (WUSA) from a network share. [...]
🤖 AI BriefingAuto-generated threat analysis
🔍Threat Overview
A known issue with the Windows Update Standalone Installer (WUSA) caused Windows updates to fail on enterprise networks, specifically affecting Windows 11 24H2/25H2 and Windows Server 2025 devices.
⚙️Technical Details
Affected Systems
Windows 11 24H2Windows 11 25H2Windows Server 2025
Attack Vectors
WUSA (Windows Update Standalone Installer)
💥Impact Assessment
Severity: Medium
Who Is at Risk
Enterprise networks with Windows 11 24H2/25H2 and Windows Server 2025 devices
🛡️Recommended Actions
1Save .msu files locally on the device to install updates from this location
2Wait 15 minutes or more after restarting Windows after installing an .msu file via WUSA before checking Update History in Settings
3Monitor for successful installation of latest monthly updates on devices upgraded to Windows 11 24H2 or 25H2
📦Affected Products
Windows 11Windows Server 2025
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