Follow the steps given below :-
1) Hold down the 'Windows' Key and Press the 'Pause/Break' button at the top right of your keyboard.
Another way is Right-Clicking 'My Computer' and then Select 'Properties'.
2) Click on the 'Advanced' tab.
3) Under 'Performance', click 'Settings'.
4) Then click the 'Advanced' tab on the button that pops up.
5) Under 'Virtual Memory' at the bottom, click 'Change'.
6) Click the 'Custom Size' button.
7) For the initial size (depending on your HD space), type in anywhere...
