Hyper-V: Windows Server 2003 should be configured with at least the minimum amount of memory

Applies To: Windows Server 2008 R2, Windows Server 2012

This topic is intended to address a specific issue identified by a Best Practices Analyzer scan. You should apply the information in this topic only to computers that have had the Hyper-V Best Practices Analyzer run against them and are experiencing the issue addressed by this topic. For more information about best practices and scans, see Best Practices Analyzer.

Operating System

Windows Server 2012 or Windows Server 2008 R2








A virtual machine running Windows Server 2003 is configured with less than the minimum amount of RAM, which is 128 MB.


The guest operating system on the following virtual machines might not run or might run unreliably: <list of virtual machine names>


Use Hyper-V Manager to increase the memory allocated to this virtual machine to at least 128 MB.

By default, membership in the local Administrators group, or equivalent, is the minimum required to complete this procedure. However, an administrator can use Authorization Manager to modify the authorization policy so that a user or group of users can complete this procedure. For more information, see Using Authorization Manager for Hyper-V Security (http://go.microsoft.com/fwlink/?LinkId=142886).

To increase the memory allocated to a virtual machine

  1. Open Hyper-V Manager. Click Start, point to Administrative Tools, and then click Hyper-V Manager.

  2. In the results pane, under Virtual Machines, select the virtual machine that you want to configure. The state of the virtual machine should be listed as Off. If it is not, right-click the virtual machine and then click Shut Down.

  3. In the Action pane, under the virtual machine name, click Settings.

  4. In the navigation pane, click Memory.

  5. On the Memory page, set the Startup RAM to at least 128 MB and then click OK.

Additional references

For more information about memory and other requirements for Windows Server 2003, see System Requirements and Hardware Compatibility (http://go.microsoft.com/fwlink/?LinkID=181486).