Posts Tagged ‘Dynamic Memory’

Hyper-V Integration Services should be updated after applying SP1 on Virtual Machines

March 10, 2011 3 comments

Now that you installed SP1 on Hyper-V/Windows 2008 R2 servers, you should upgrade the Integration Services in all virtual machines or have the SP1 installed on the VM’s also.

To do this using the Virtual Machine Manager, connect to the VM :

1. Click in ACTION,
2. C
lick Insert Integration Services Setup Disk
3. Click Install Hyper-V Integration Services
4. Click OK, when a message informing about a previous installation show.

To check the Integration Services version, look at the Driver version of the Microsoft Virtual Machine Bus Network Adapter in Device Manager


Windows 2008R2/Windows 7 SP1: Changes common to both client and server platforms

February 25, 2011 Leave a comment

Here are the changes common to W2008R2 ad Windows 7, after applying the SP1:

1. Change to behavior of “Restore previous folders at logon” functionality

SP1 changes the behavior of the “Restore previous folders at logon” function available in the Folder Options Explorer dialog. Prior to SP1, previous folders would be restored in a cascaded position based on the location of the most recently active folder. That behavior changes in SP1 so that all folders are restored to their previous positions.

2. Enhanced support for additional identities in RRAS and IPsec

Support for additional identification types has been added to the Identification field in the IKEv2 authentication protocol. This allows for a variety of additional forms of identification (such as E-mail ID or Certificate Subject) to be used when performing authentication using the IKEv2 protocol.

3. Support for Advanced Vector Extensions (AVX)

There has always been a growing need for ever more computing power and as usage models change, processors instruction set architectures evolve to support these growing demands. Advanced Vector Extensions (AVX) is a 256 bit instruction set extension for processors. AVX is designed to allow for improved performance for applications that are floating point intensive. Support for AVX is a part of SP1 to allow applications to fully utilize the new instruction set and register extensions.

4. Improved Support for Advanced Format (512e) Storage Devices

SP1 introduces a number of key enhancements to improve support of recently introduced storage devices with a 4KB physical sector size (commonly referred to as “Advanced Format”). These enhancements include functionality fixes, improved performance, and updated storage drivers which provide applications the ability to retrieve information as to the physical sector size of storage device. More information on these enhancements is detailed in Microsoft KB 982018.

Changes specific to Windows 7 with SP1

February 24, 2011 Leave a comment

Here are the specific changes for Windows 7 SP1

1. Additional support for communication with third-party federation services

Additional support has been added to allow Windows 7 clients to effectively communicate with third-party identity federation services (those supporting the WS-Federation passive profile protocol). This change enhances platform interoperability, and improves the ability to communicate identity and authentication information between organizations.

Improved HDMI audio device performance

A small percentage of users have reported issues in which the connection between computers running Windows 7 and HDMI audio devices can be lost after system reboots. Updates have been incorporated into SP1 to ensure that connections between Windows 7 computers and HDMI audio devices are consistently maintained.

2. Corrected behavior when printing mixed-orientation XPS documents

Prior to the release of SP1, some customers have reported difficulty when printing mixed-orientation XPS documents (documents containing pages in both portrait and landscape orientation) using the XPS Viewer, resulting in all pages being printed entirely in either portrait or landscape mode. This issue has been addressed in SP1, allowing users to correctly print mixed-orientation documents using the XPS Viewer.


Changes specific to Windows Server 2008 R2 with SP1

February 23, 2011 Leave a comment

Here are the specific to Windows 2008 R2 SP1:

Dynamic Memory

Constraints on the allocation of physical memory represents one of the greatest challenges organizations face as they adopt new virtualization technology and consolidate their infrastructure. With Dynamic Memory, an enhancement to Hyper-V™ introduced in Windows Server 2008 R2 SP1, organizations can now make the most efficient use of available physical memory, allowing them to realize the greatest possible potential from their virtualization resources. Dynamic Memory allows for memory on a host machine to be pooled and dynamically distributed to virtual machines as necessary. Memory is dynamically added or removed based on current workloads, and is done so without service interruption.

Virtual machines running a wide variety of operating systems can use Dynamic Memory; for a complete list, see the “Dynamic Memory Evaluation Guide” at The guide also discusses Dynamic Memory settings and usage in detail.

Microsoft RemoteFX

Businesses are increasingly looking to leverage the efficiency and cost savings that can come from a virtualized desktop infrastructure. With the addition of Microsoft RemoteFX in Windows Server 2008 R2 SP1, a new set of remote user experience capabilities that enable a media-rich user environment for virtual desktops, session-based desktops and remote applications is introduced. Harnessing the power of virtualized graphics resources, RemoteFX can be deployed to a range of thick and thin client devices, enabling cost-effective, local-like access to graphics-intensive applications and a broad array of end user peripherals, improving productivity of remote users.

RemoteFX can function independently from specific graphics stacks and supports any screen content, including today’s most advanced applications and rich content (including Silverlight and Adobe Flash), ensuring that end users maintain a rich, local-like desktop experience even in a virtualized thin-client environment.

RemoteFX also adds mainstream USB device support to virtual desktop computing, including support for USB drives, cameras and PDAs connected to the client device. RemoteFX also provides a platform for hardware and software partners to enhance RemoteFX capabilities in a variety of possible host, client and network configurations.

To use RemoteFX, the virtualization server must be running Windows Server 2008 R2 with SP1, the virtual machine must be running Windows 7 Enterprise with SP1 or Windows 7 Ultimate with SP1, and the remote client computer must be running either Windows Server 2008 R2 with SP1 or Windows 7 with SP1. To connect to the virtual machine, the remote client computer requires an updated version of Remote Desktop Services (included in the service pack for all editions of Windows 7).

Enhancements to scalability and high availability when using DirectAccess

DirectAccess is a new feature in the Windows 7 and Windows Server 2008 R2 operating systems that gives users the experience of being seamlessly connected to their corporate network any time they have Internet access. In Windows Server 2008 R2 SP1, improvements have been made to enhance scalability and high availability when using DirectAccess, through the addition of support for 6to4 and ISATAP addresses when using DirectAccess in conjunction with Network Load Balancing (NLB).

Support for Managed Service Accounts (MSAs) in secure branch office scenarios

SP1 enables enhanced support for managed service accounts (MSAs) to be used on domain-member services located in perimeter networks (also known as DMZs or extranets).

Support for increased volume of authentication traffic on domain controllers connected to high-latency networks

As a greater volume of IT infrastructure migrates to cloud-based services, there is a need for higher thresholds of authentication traffic to domain controllers located on high-latency networks (such as the public Internet). SP1 allows for more granular control of the maximum number of possible concurrent connections to a domain controller, enabling a greater degree of performance tuning for service providers.

Enhancements to Failover Clustering with Storage

SP1 enables enhanced support for how Failover Clustering works with storage that is not visible for all cluster nodes. In SP1, improvements have been made to the Cluster Validation and multiple Failover Cluster Manager wizards to allow workloads to use disks that are shared between a subset of cluster nodes.

Windows 7 and W2008 R2 SP1 released. Important Steps to follow before you install

February 23, 2011 1 comment


SP1 Download link :

Before you install Windows 7 SP1 , make sure that you follow these steps:

STEP 1 : Uninstalling SP1 using Programs and Features

The easiest way to uninstall SP1 is using Programs and Features.

  1. Click the Start button Picture of the Start button, click Control Panel, click Programs, and then click Programs and Features.
  2. Click View installed updates.
  3. Click Service Pack for Microsoft Windows (KB 976932), and then click Uninstall.

    If you don’t see Service Pack for Microsoft Windows (KB 976932) in the list of installed updates, your computer likely came with SP1 already installed, and you can’t uninstall the service pack. If the service pack is listed but grayed out, you can’t uninstall the service pack.

Uninstalling SP1 using the Command Prompt

  1. Click the Start button Picture of the Start button, and then, in the search box, type Command Prompt.
  2. In the list of results, right-click Command Prompt, and then click Run as administrator. Administrator permission required If you’re prompted for an administrator password or confirmation, type the password or provide confirmation.
  3. Type the following: wusa.exe /uninstall /kb:976932
  4. Press the Enter key.

Step 2: Back up your important files

Back up your files to an external hard disk, DVD or CD, USB flash drive, or network folder. For information about how to back up your files, see Back up your files ( .

Step 3: Update device drivers

Update device drivers as necessary. You can do this by using Windows Update in Control Panel or by going to the device manufacturer’s website. 

Important If you are using an Intel integrated graphics device, you should be aware that there are known issues with certain versions of the Intel integrated graphics device driver and with D2D enabled applications, such as certain versions of Windows Live Mail. The versions of the Intel integrated graphics device driver that are known to be problematic are Igdkmd32.sys and Igdkmd64.sys versions through For more information about a known issue with these drivers and with Windows Live Mail, see Microsoft Knowledge Base article 2505524 ( .

To check whether you are using the Intel integrated graphics device driver Igdkmd32.sys or Igdkmd64.sys versions through, follow these steps: 

  1. Start DirectX Diagnostic Tool. To do this, click Start, type dxdiag in the Search programs and files box, and then press Enter.
  2. Click the Display tab.
  3. Note the driver and driver version.
  4. If you have the Intel integrated graphics driver Igdkmd32.sys or Igdkmd64.sys versions through, visit the computer manufacturer’s website to see whether a newer driver is available, and then download and install that driver.

Step 4: Install Windows Update KB2454826

 Install Windows Update KB2454826 from Windows Update (  if it is not already installed. If you install the service pack from the Microsoft Download Center and do not install Windows Update KB245862, you could encounter a Stop error in Windows in rare cases.

Windows Update KB2454826 will automatically be installed when you install the service pack by using Windows Update. However, Windows Update KB2454826 is not automatically installed when you install the service pack from the Microsoft Download Center.

To check whether Windows Update KB2454826 is installed, click Start, type View installed updates in the Search programs and files box, and then press Enter. Notice whether Update for Microsoft Windows (KB2454826) is listed. If the update is not listed, you will have to install it from Windows Update

Step 5: Check for malware

Check your computer for malware by using antivirus software. Some antivirus software is sold together with annual subscriptions that can be renewed as needed. However, much antivirus software is also available for free. Microsoft offers Microsoft Security Essentials, free antivirus software that you can download from the Microsoft Security Essentials (  website. You can also visit the Microsoft Consumer security software providers (  webpage to find third-party antivirus software.

Important If your computer is infected with malware and you install Windows 7 SP1, you could encounter blue screens or a Windows Update error such as 8007f0f4 or FFFFFFFF. If malware is detected, Windows Update will be unable to install SP1.

SCVMM 2008 R2 SP1 RC is now ready to download

December 8, 2010 Leave a comment

For those who are participant in a Microsoft Connect beta program : SCVMM 2008 R2 Beta :

The  SCVMM 2008 R2 Service Pack 1 Release Candidate is now ready to download from

This release adds support for Windows Server 2008 R2 SP1 RC to SCVMM. We’ve added the necessary properties and controls to allow you to create and manage Dynamic Memory and RemoteFX enabled on virtual machines on Windows Server 2008 R2 SP1 Hyper-V hosts.

 Since this is a pre-release version, usage of this is limited to test environments. You’re encouraged to ask questions via theSCVMM forums

Windows 2008R2 SP1: Changes that were made to the Hyper-V Manager

November 4, 2010 Leave a comment

In response to feedback from beta users of the service pack 1 release, Microsoft made some changes to the Hyper-V Manager and also to the virtual machine settings user interface.

There are three changes that have been made to the virtual machine settings user interface 

  • “Memory priority” is now “Memory weight”
  • The memory buffer is now configured using a text box instead of a slider.
  • Memory buffer now uses different math. 

To learn more and understand why, check here on Ben Armstrong (Virtual PC Guy  ) Blog: