MCS Provisioned VMs Share an Identical Machine SID

MCS Provisioned VMs Share an Identical Machine SID

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Article ID: CTX226711

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Description

VMs provisioned from the same master image will share an identical machine SID.

Resolution

Duplicate machine SIDs aren't an issue in a Domain-based environment since machines' domain accounts have the unique Domain SID.


Problem Cause

When GUI portion of Windows Setup has been reached during a Windows installation, the computer is assigned a name and a unique computer SID. If a system is cloned after this step, like via MCS provisioning, the cloned machines will all have identical computer SIDs.

Issue/Introduction

The article describes why MCS provisioned VMs share an identical machine SID

Additional Information

https://docs.microsoft.com/en-us/sysinternals/downloads/newsid