How to Increase Virtual Memory

Virtual memory is very important in a PC or Laptop. Some time due to virtual memory we face a lot of error in installation or while using PC like this many more. Some time our operating system unable to perform some operation due to low virtual memory.
So let we discuss how we can increase virtual memory.
What is Virtual Memory?

Before I enumerate steps of how to increase virtual memory, it would be interesting to understand and appreciate how the operating system programmers have achieved economy of memory usage by coming up with the concept of virtual memory.
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