Expert Q & A: Resolve the cause and solution of "insufficient Virtual Memory"

The virtual memory of the system can help the system perform many operations in the background. Some users often do not know what the virtual memory is for. Why do computers always prompt that the virtual memory is insufficient ?......
My computer system is WinXP. Recently I didn't open many programs, but I often see system prompts of "insufficient Virtual Memory. What is the cause?

There may be the following reasons:

1. Virus Infection

Some viruses occupy a large amount of memory space during attack, leading to insufficient memory in the system. Go to antivirus, upgrade the virus database, and take anti-virus measures!

2. Improper virtual memory settings

Improper virtual memory settings may also cause insufficient memory. Generally, the virtual memory size is twice the physical memory size. If it is set too small, it will affect the normal operation of the system program. Re-adjust the virtual memory size. Take WinXP as an example. Right-click "my computer" and select "properties". On the "advanced" tab, click "set" in the "performance" box, switch to the "advanced" tab, click "change" in the "virtual memory" box, and then reset the virtual memory size. Then, restart the system. We recommend that you do not divide the virtual memory into the system root directory.

3. Insufficient system space

The virtual memory file is in the system disk by default. For example, the virtual memory file name of WinXP is "pagefile. sys ". If the remaining space on the system disk is too small, the virtual memory is insufficient and the memory is insufficient. The system disk must retain at least MB of space. Of course, this value depends on your actual needs. Users should try not to install various applications on the system disk to ensure that there is sufficient space for virtual memory files, and it is best to place the virtual memory files in non-system disks.

4. Incorrect SYSTEM user permission settings

When an NT-based Windows SYSTEM is started, the SYSTEM user creates a virtual memory file for the SYSTEM. Some users use the NTFS file SYSTEM for SYSTEM security, but cancel the SYSTEM user's "write" and "modify" permissions on the SYSTEM disk, so that they cannot create virtual memory files for the SYSTEM, when running a large program, the memory is insufficient. The problem is well solved. You only need to re-grant the SYSTEM user the "write" and "modify" permissions, but this is only for users who use the NTFS file SYSTEM.