How to Change the Cache Size in Windows XP

Windows XP allocates computer memory in two basic ways. Some memory is allocated for use by software applications, and some is allocated for use by the operating system. The memory that Windows XP allocates for use by the operating system is referred to as system cache. By default, Windows XP allocates more memory for software applications than for the operating system, and it is not possible to increase that allocation. However, if you have administrator privileges, it is possible to change the system cache size in Windows XP so as to allocate more memory to the operating system.

Difficulty: Moderately Easy

Instructions

1. From the Start menu click the "Run" icon. This opens a Run window.

2. Type sysdm.cpl in the "Open" box in the Run window, then press the "OK" button. This opens the System Properties control panel window.

3. Click the "Advanced" tab in the System Properties window, and then click the "Settings" button. This opens the Performance Options window.

4. Click the "Advanced" tab in the Performance Options window, then click the radio button next to "System Cache" to change the size of the cache.

5. Click "OK" to save the changes. This will open a confirmation window. Click the "OK" button in the confirmation window, then the "OK" button in the System Properties window.

6. Restart your computer to complete the process.

Tips & Warnings

• Changing the system cache may cause unexpected results. Only change the system cache if directed to do so by a qualified computer professional.

References

• Cache optimization information from Microsoft