Error occurred during vCenter operation when editing a VMware Horizon View pool

When editing a VMware Horizon desktop pool in some situations the server error ‘Error occurred during vCenter operation’. appears.


The error hasn’t any useful information that says what is wrong. When this error occurs the vCenter Server is unable to find one or more objects listed in the desktop pool. When changing datacenter, cluster or host settings in vCenter the desktop pool must be updated to.  To resolve this error open the desktop pool, select the vCenter settings tab an check or update the Parent VM, Snapshot, Host or cluster, Resource pool and datastores. Also check if the ESXi host with local storage are not in maintenance mode! After updating these settings the error must be gone.




VMware Horizon View Optimization Guide for Windows 7 and Windows 8 white paper update

VMware released an updated version of the “VMware Horizon with View Optimization Guide for Windows 7 and Windows 8” whitepaper. This white paper discuss the necessary information for optimizing a Windows 7 or Windows 8 virtual desktop image for VMware Horizon View using the Microsoft Deployment Toolkit (MDT) or use a script-based approach.

The updated (July 15, 2014) “VMware Horizon with View Optimization Guide for Windows 7 and Windows 8” whitepaper can be found here. Link

Changelog scripts:

Removed on 03 June 2014
The following code was removed to fix issues with IE10, IE11, and Adobe Acrobat:
rem reg ADD “HKLM\System\CurrentControlSet\Control\Session Manager\Memory
Management” /v MoveImages /t REG_DWORD /d 0x0 /f

Removed on 11 February 2014
Rem Remove recycling bin
reg ADD “HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\
policies\Explorer” /v NoRecycleFiles /t REG_DWORD /d 0x1 /f

Updated version of the VMware OS Optimization Tool

The VMware Labs Flings has an updated version of the “VMware OS Optimalization Tool”. The VMware OS Optimization Tool helps optimize Windows 7/8/2008/2012 systems for use with VMware Horizon View. New enhancements are:

  • Updated templates for Windows 7/8 – based on VMware’s OS Optimization Guide
  • New templates for Windows 2008/2012 RDSH servers for use as a desktop
  • Single portal EXE design for ease of deployment and distribution
  • Combination of Remote and Local tools into one tool
  • Better template management, with built in and user-definable templates
  • Results report export feature.

The VMware OS Optimization Tool can be found here, link

VMware Horizon View Network Port Diagram

VMware has released a Network Port Diagram diagram for VMware Horizon View 5.2.


This diagram covers an entire VMware View environment with protocols and port numbers used. In earlier blog posts I already create two small diagrams with protocols and port numbers used by VMware View:

  • Tips for implementing a VMware Horizon View Security Server. Link
  • VMware Horizon View and HTML access (Blast protocol). Link

The  diagram created by VMware can be handy when implementing and troubleshooting VMware Horizon View. Download the diagram here Link