Setting Up Desktop and Application Pools in View

Table Of Contents
Disable the Diagnostic Policy Service on Windows 7 and Windows 8 Virtual
Machines
Disabling the Windows Diagnostic Policy Service can minimize the number of system writes and reduce the
growth of linked-clone machines.
Do no disable the Windows Diagnostic Policy Service if your users require the diagnostic tools on their
desktops.
Procedure
1 In vSphere Client, select the parent virtual machine and select Open Console.
2 Log in to the Windows 7 or Windows 8 guest operating system as an administrator.
3 Click Start > Control Panel > System and Security > Administrative Tools.
4 Select Services and click Open.
5 Double-click Diagnostic Policy Service.
6 In the Diagnostic Policy Service Properties (Local Computer) dialog, click Stop.
7 In the Startup type menu, select Disabled.
8 Click OK.
Disable the Prefetch and Superfetch Features on Windows 7 and Windows 8
Virtual Machines
By disabling the Windows prefetch and superfetch features, you can avoid generating prefetch files and the
overhead associated with prefetch and superfetch operations. This action can reduce the growth of linked-
clone machines and minimize IOPS on full virtual machines and linked clones.
To disable the prefetch and superfetch features, you must edit a Windows registry key and disable the
Prefetch service on the virtual machine.
Prerequisites
See the Microsoft TechNet Web site for information on how to use the Windows Registry Editor on
Windows 7 and Windows 8.
Procedure
1 Start the Windows Registry Editor on the local Windows 7 or Windows 8 virtual machine.
2 Navigate to the registry key called PrefetchParameters.
The registry key is located in the following path:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Memory
Management\PrefetchParameters.
3 Set the EnablePrefetcher and EnableSuperfetch values to 0.
4 Click Start > Control Panel > System and Security > Administrative Tools.
5 Select Services and click Open.
6 Double-click the Superfetch service.
7 In the Superfetch Properties (Local Computer) dialog, click Stop.
8 In the Startup type menu, select Disabled.
9 Click OK.
Setting Up Desktop and Application Pools in View
44 VMware, Inc.