VMware VCM 5.3 User Manual download pdf (Page 17)

Windows 7 Operating System Optimization

Deploying Microsoft Windows 7 Virtual Desktops with VMware View Applied Best Practices

To configure this option:

1. Edit the VMware_View G

PO.

2. S

elect Computer Configuration > Policies > Administrative Templates > Windows

Components > Windows Update.

3. Set the Configure Automatic Updates to Disabled.

To provide additional space for previously downloaded updates, delete the

C:\Windows\SoftwareDistribution\Download folder.

N ote: Do not del ete the SoftwareDistibution folder itself.

N ote: Do not disable automatic updates through group policy in environments that use

Sy stem Center Configuration M anager (SCCM ) because i t w ill prevent SCCM upd ates fr om being

installed.

Remove unnecessary applications [A]

Many applications load boot-time processes to aid with application performance by caching and

prefetching specific data into memory ahead of any actual user request. Examples of this are the

boot-time stubs loaded by QuickTime, Real Player, Adobe Acrobat, and others.

Remove Windows components [A]

Remove any Windows components that are not required in the environment such as MSN

Explorer or Tablet PC components:

1. Navigate to Control Panel > Programs and Features > Turn Windows features on or off.

2. Remove any unneeded components.

Change NTFS behavior [A]

There are several NTFS options than can be tuned using the fsutil command to minimize file

system overhead. These options include the ability to disable the creation of DOS style 8.3

filenames and disabling the “last accessed” time stamp. The “last accessed” option can reduce

write workload for users who run applications that access many files.

To disable these features, open a command window and type the following commands:

fsutil behavior set disablelastaccess 1

fsutil 8dot3name set 1

Disable hibernation [A]

Given the high I/O cost of writing the contents of the systems RAM to the C:\hiberfil.sys file, do

not allow virtual desktops to go into a hibernation state due. Since the hiberfil.sys file size is

equivalent to the RAM allocated to the virtual machine, removing it can save space.

To disable hibernation, open a command prompt and type powercfg /hibernate off.

Disable system restore [A]

Since most VDI environments do not require system restore, this feature can safely be disabled.

This practice is acceptable, because users’ data should be moved out of the virtual machine by

using folder redirection. In the event the virtual machine becomes corrupt, a replacement can be

quickly provisioned to save on I/O overhead of creating and maintaining snapshot data on the

virtual machine and also save a significant amount of space.

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VMware VCM 5.3 User Manual Page 17

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