NoteHKLM\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management
| Data type | Range | Default value |
|---|---|---|
| REG_DWORD | 0x0 | 0x1 - 0xFFFFFFFF bytes | 0 |
Specifies the maximum number of bytes that can be locked for I/O operations.
| Value | Meaning |
|---|---|
| 0x0 | The system sets the lock limit to 512 KB. |
| 0x1 - 0xFFFFFFFF bytes | The value entered overrides the system default and is used as the I/O lock limit. |
Note
The maximum lock limit is determined by the amount of physical memory on the computer. Do not set the lock limit above the following values:
| Amount of physical memory | Maximum lock limit |
|---|---|
| Less than 64 MB | Physical memory minus 7 MB |
| 64 MB - 500 MB | Physical memory minus 16 MB |
| 512 MB and greater | Physical memory minus 64 MB |