MC1275343 — Hardening administrative actions: Windows imaging, cloning, and auth workflows

Administrative actions are undergoing hardening changes that might require operational change to support your organization’s security posture. With the August 2025 Windows non-security update, devices were hardened against unauthorized attempts to bypass loopback detection. However, if you’ve cloned machines without Sysprep, you might see Kerberos and NTLM authentication failures. This is by design. The recommended solution is to rebuild affected devices using supported imaging methods. A tempor...

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