Computers use two main types of memory: RAM and storage.
RAM is fast and expensive and is used to store data used by currently running programs.
By using fast RAM to store data for currently in use programs, they can load data faster.
Utilizing the virtual memory space comes with a performance impact.
Any data moved there can then only be accessed at the slower speeds of the hard-drive.
First, you oughta open Control Panel and browse to Control Panel\System and Security\System.
tap on Advanced system tweaks on the left-hand side of the page.
In the Performance Options window, move to the Advanced tab and click Change in the Virtual memory box.
This will now pop pop the Virtual Memory configuration window.
Windows recommends 800MB as a minimum as this allows space to save error reports for crashes and blue screens.
Dont set your system below the recommended value as you risk performance problems under heavier work loads.
Its worth noting that your rig doesnt use this virtual memory until its actual RAM is used up.
Configure the amount of virtual memory your box has.
For modern machines, a minimum of 8GB of RAM is recommended.