Clean system disk from temporary files. To do this, invoke the main menu by pressing the "start" button and click "All programs." Open the link to "Standard" and run the application "Windows Explorer". Navigate to drive:\Documents and Settings\username\LocalSettings\Temp - for Windows XP or drive:\Users\username\AppData\Local\Temp - for Windows 7
and delete all the contents of the Temp folder.
Slim Windows system files. To do this, locate the root partition of the system volume file name pagefile.sys represents the paging file, and either reduce it or move to another volume. Delete also the file name hiberfil.sys designed to preserve the memory state of the computer when entering into hibernation or sleep.
Simultaneously press the function keys Ctrl, Alt and Del to run task Manager and go to Processes tab in the opened dialog window. Identify the program modules that use a large amount of memory and click "End process".
Return to the main menu "start" and go to "Run" in order to remove it from the startup folder is not necessary in applications that use large amounts of memory. Type msconfig in the Open box, and confirm the selected action by pressing the OK button. Select "startup" in the menu and clear the check boxes for the unnecessary apps. Confirm saving the changes by pressing the OK button.
Use the standard cleaning function of the system drive. To do this, call the properties dialog of the desired volume and select the command "disk Cleanup". Confirm the selected actions by clicking the OK button.