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Thursday, 23 August 2012

Differences between QuickPrep and Sysprep


This article discusses the main between VMware QuickPrep and Microsoft Sysprep. It further describes the functions of the two methods allowing users to select the appropriate method for creating Linked Clone Desktops.


QuickPrep is a VMware system tool executed by View Composer during a linked-clone desktop deployment. QuickPrep personalizes each desktop created from the Master Image. Microsoft Sysprep is a tool to deploy the configured operating system installation from a base image. The desktop can then be customized based on an answer script. Sysprep can modify a larger number of configurable parameters than QuickPrep.
During the initial startup of each new desktop, QuickPrep:
  • Creates a new computer account in Active Directory for each desktop.
  • Gives the linked-clone desktop a new name.
  • Joins the desktop to the appropriate domain.
  • Optionally, mounts a new volume that contains the user profile information.
This table lists the main differences between QuickPrep and Sysprep:
Removing local accountsNoYes
Changing Security Identifiers (SID)NoYes
Removing parent from domainNoYes
Changing computer nameYesYes
Joining the new instance to the domainYesYes
Generating new SIDNoYes
Language, regional settings, date, and time customizationNoYes
Number of reboots01 (seal & mini-setup)
Requires configuration file and Sysprep  NoYes
Note: A Guest Customization script is required in vCenter Server to use Sysprep. Sysprep is bundled in with Windows 7. For Windows XP, an appropriate Sysprep program needs to be installed on the vCenter Sever.

See Sysprep file locations and versions (1005593) for information on installing Sysprep tools.
For more information on the use of Sysprep and the Guest Customisation wizard,see Customizing Guest Operating Systems andInstalling the Microsoft Sysprep Tools in the vSphere Virtual Machine Administration Guide.