HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management

Data type Range Default value
REG_DWORD 0 | Number of bytes 0


Specifies the size of the nonpaged pool.

Value Meaning
0 The system calculates an optimal value for this entry based on the amount of physical memory on the computer, and then adjusts this value if the amount of memory changes. This value is optimal for most systems.
Number of bytes Creates a nonpaged pool of the specified size. This overrides the value calculated by the system and prevents the system from adjusting this value dynamically. This setting can degrade performance.

Activation method

You must restart the computer before a change to this value takes effect.

Tip Image Tip

For more information on paged pools and nonpaged pools, see the Microsoft Knowledge Base link on the Web Resources page. Search the Knowledge Base for Article Q126402, or use the keywords PagedPoolSize and NonPagedPoolSize.

Caution Image Caution

Changing this value can degrade the performance of your computer.

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