Start Regedit.

Navigate to
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SessionManagerMemory Management
Select ClearPageFileAtShutdown from the list on the right.
Right on it and select Modify.
Change the value to 1 to enable.
Reboot your computer
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Speed up Nero in XP
Go to "administrative tools" in the control panel, and in the "services" list, disable the IMAPI CD-Burning COM service.
(Note: manual setting is not enough it must be disabled) It is the built-in CD-burning capability for windowsXP (incidentally, written by Roxio).