Many files are created using the Windows and these files are used virtual memory. But these files can reduce computer speed.
You can delete these files when shut down your computer.
-At first click start menu.
-Go to control panel.
-Performance and maintenance.
-Click Administrative Tools.
-Click Local Security Policy.
-Select Security Settings.
-Click Local Policies.
-Click Security Option.
-Find out “Shutdown: Clear virtual memory page file” form right side.
-Double click to “Shutdown: Clear virtual memory page file” option.
-Then Select Enable and click to OK.
In the computer closing time the computer virtual memory page file will be automatically deleted.