My memory is 1G, but the virtual memory PF in Task Manager has checked 1G, why?

The memory you say actually refers to the physical memory of 1G, of course, if your graphics card is integrated, then the actual physical memory you see is less than 1G, and the virtual memory is actually a little space on the hard disk to temporarily store some data. Its size can be set by itself, and generally the virtual memory is set to a multiple of the physical memory. This is set according to your own needs, and it is generally made larger if you play games.

Normally, the virtual memory is larger than the actual memory. Virtual memory is generally a double of the actual memory.

Virtual memory is a piece of hard disk that is used temporarily as memory.

And the memory is your physical memory, which is the card.

So total memory = virtual memory + physical memory.

Normally, virtual memory is inherently larger than physical memory. That's where the page files are stored. If it is 1G, the virtual memory is generally set to 2048 4096, which is twice the value.

This way, when you run certain files, you won't get a message that the system is running out of memory.

All operating systems have virtual memory, don't believe it, you unplug the hard disk, see if your system can get up, the general self-test can pass, and then there is nothing, it is an error, there is no boot disk.

This is a basic feature of the operating system, and it is recommended that you check your knowledge about the operating system.

pf：page

file, page file (virtual memory).

A page file is the hard disk space that the operating system uses to virtualize memory. To organize a page file, first move the page file from the original drive to a different drive, then organize the original drive, and finally move the page file back to the original drive, where the page file is stored in contiguous disk space.

Specifically, this file, it is the system page file (that is, the well-known virtual memory file), its usage depends on the number of open programs and the minimum and maximum value of the page file you originally set, it is constantly changing, sometimes it may only be tens of meters, sometimes it reaches hundreds of meters or more!

If you have more than 2G of RAM for this one! You can turn off the virtual memory!

PF Usage: The value of the amount of space that has been used by virtual memory.

This usage is not about the efficiency of memory usage, but rather about how much memory is used, so the higher the better.

In normal Windows XP, the PF usage should be between 105 and 135. It increases with the number of programs you have open

Because CPU usage and PF usage are proportional to your computer's CPU configuration and memory module size and system performance, reducing PF usage can improve system performance to a certain extent.

So how to reduce the use of PF?

Upgrading the hardware is the best way to do this, but upgrading the memory alone will make the PF of the machine fall to the bottom.

Of course, the CPU will be improved accordingly. If you have enough money on hand, you can also upgrade the CPU or memory. There are many ways to software, close the program that starts with boot, clean up the registry garbage, do the defragmentation of the system disk, set the virtual memory and environment variables, reduce the resolution and refresh rate, you can turn off the startup items that you don't need, stop some processes in the system process, it is recommended to change the fake memory to a disk other than the system disk, so that you can reduce the file fragmentation of the system disk to a certain extent, and the speed can also be maintained for a long time.

If you are not satisfied, you can try to modify the management tools by yourself, such as computer management registry, manually close some system services, etc.

Nowadays, there are many systems that have been encapsulated, and streamlined systems generally have a low PF value, because they are optimized by technicians, so they are often used in Internet cafes.

When the physical memory of the virtual memory (pagefile) is no longer enough, the effect of putting the data that is not used temporarily on the hard disk is basically similar to the physical memory, and the best way to reduce the use of PF is to increase the memory. If it's not enough, you can set it a little bigger. But bigger doesn't necessarily mean faster.

Let's go back to the backstage stuff first.

Chances are, you can try it with an antivirus.