"Not enough server storage is available to process this command" error


McAfee VirusScan Enterprise (VSE) 8.x

For details of VSE 8.x supported environments, see KB51111.


When a client tries to access network shares, either of the following error is displayed:

Not enough server storage is available to process this command
Not enough memory to complete transaction. Close some applications and retry


You see the following entry in the Windows System Event log:

Event ID : 2011
Source : Srv
Description: The Server's configuration parameter "IRPStackSize" is too small for the server to use a local device. Please increase the value of this parameter.


These errors might be reported on some computers after you apply a VirusScan Patch.


  • On some computers, you might see this error after you install a VirusScan Enterprise Patch that updates the drivers.
  • You see this issue on some low specification computers where the available CPU or RAM is insufficient for the VirusScan FEAD optimizer to run. VirusScan FEAD is a high-compression tool used before VSE 8.7i.


If you see this issue after you apply a VSE Patch (updating the VirusScan drivers), restart your computer.
In all other cases, use the solution below.


  • 以下信息供系统管理员使用。 注册表修改是不可逆的,如果执行不正确可能会导致系统故障。
  • 执行前,技术支持强烈建议您先备份注册表并了解还原过程。 有关详细信息,请参阅 http://support.microsoft.com/kb/256986
  • 请不要运行未确认为真正的注册表导入文件的 REG 文件。

Increase the IRPStackSize value in the registry 
  1. Click Start, Run, type regedit and click OK. Then, locate the following key:

  2. In the right pane, locate the IRPStackSize key.
  3. If the IRPStackSize value does not exist:
    1. In the Parameters folder, right-click in a blank area of the right pane and select New.
    2. From the menu, select DWORD Value and change the default name to IRPStackSize and press ENTER.

      NOTE: The IRPStackSize name is case sensitive.
  4. Double-click the IRPStackSize key.
  5. In the Base section, select decimal, and in the Value data field, type a value that is larger than the value listed, then click OK.

    NOTE: McAfee recommends that you increase the value by 3. Example: If the previous value was 11, type 14. The default value is 15. 
  6. Exit the registry editor and restart your computer.

    NOTE: If the issue persists, increase the value of IRPStackSize in further increments of 3.
    Operating System IRPStackSize values
    Windows XP, Windows 2000, Windows Server 2003 Default value is 15.
    Range is 11–50.

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