Virtual Memory Increase
In setting the amount of virtual memory you will need to put an initial and a maximum value. It is recommended that both values be equal in order attain the best performance for your computer system. Normally the minimal amount of virtual memory should be about twice the amount of RAM installed in the machine.

Nice tip Marie, but I think it's better if you have also explained a little bit of what virtual memory is.

Virtual memory is a technique for assigning and using hard disk memory that extends the amount of programs able to run at a time. It is relatable to a fictitious memory system that is used in Windows operating systems in order to extend the potential of the computer’s physical memory. Rather than rely on actual, physical sites to store program information, virtual memory technology is able to assign unused parts of programs to imaginary memory addresses, when it is actually stored on the hard drive.

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