Microsoft 365 Alert – Service Degradation – Microsoft 365 suite – Some users’ Windows devices with policies configured to prevent auto updates may be installing drivers – RESOLVED

03/06/2026 08:58:00 AM

NHSmail Reference: INC46841357

Microsoft Reference: MO1332784

Issue Status: RESOLVED

Issue Description: Some users’ Windows devices with policies configured to prevent auto updates may be installing drivers.

More info: As we work to remediate the impact, we’ve determined that the drivers being installed are Microsoft approved/signed and that they don’t pose a security threat.

Final Update: 04/06/2026 08:48:00 AM – Microsoft has validated that this issue is resolved following impact remediation confirmation from a subset of previously affected users.

Scope of impact: This issue may cause drivers to be installed for users with a Windows device configured to prevent auto updates.

Root cause: A caching service used by the Windows Update service temporarily dropped device enrollment information. As a result, affected Windows devices were briefly treated as non-enrolled, preventing the expected driver-approval controls being applied.

Next steps : Microsoft are continuing to review how this caching service temporarily dropped Windows device enrollment information to better inform how to detect, prevent, and respond to similar service issues in the future.