File pagefile.sys
Pagefiles.sys also called as swap file is a file created by Windows to surmount lack of RAM.
This technique for extending the memory system is called "
Virtual Memory".
Under Windows 2000 and Windows XP, you can ensure that the file
pagefile.sys is cleaned when the computer is switched by creating (or modifying) the key
ClearPageFileAtShutdown.
You just have to type REG_DWORD with the value 1 under the key:
HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ Control \ SessionManager \ Memory Management
Note: This process may however slow down the shut down process of your computer.