Microsoft Resolves Windows Update Caching Issue Affecting Driver Policies

• •A misconfiguration in Windows Update caused unauthorized driver installations.
• •Tens of thousands of devices were affected, treated as unmanaged endpoints.
• •Microsoft confirmed that the installed drivers were approved and posed no security threat.

On June 2, 2026, Microsoft acknowledged a misconfiguration in the Windows Update caching service that caused Windows devices to install driver updates without adhering to administrative policies. This issue temporarily dropped device enrollment information, leading to tens of thousands of devices being treated as unmanaged and allowing unauthorized driver installations. The Intune Support Team confirmed the issue and stated that the installed drivers were Microsoft approved and posed no security threat. Microsoft resolved the issue by updating the affected service cache and validating the fix by June 3. However, the exact number of affected regions or customers remains unspecified. This incident follows previous issues with Windows Server upgrades and driver installations that bypassed administrative controls.