How to Clear the Windows Paging File at Shutdown

Pagefile.sys is your Windows virtual memory swap file. When the applications you’re running on your computer end up needing more RAM than you actually have, Windows will start shuffling things around and use your hard disk as “virtual” memory. At the sometimes high cost of speed (your hard disk, and thus virtual memory, is much slower than actual RAM) you avoid getting an out of memory error.

To empty the file of memory swap to the closing of Windows:

1. Click Start menu and choose Run, then type regedit and click on OK.
2. In the window regedit which opens, unroll the branch: HKEY_LOCAL_MACHINE SYSTEM CurrentControlSet Control Session Manager Memory Management
3. Double-click on the ClearPageFileAtShutdown key and allot value 1 to this key.
4. Close and start Windows again

Please also check the following article:
http://support.microsoft.com/kb/314834

Categories: Windows

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