I want some information in cleaning the layout.ini file in Windows XP 64bit. Does this really help to boost up my system performance. I run XP Pro/SP1 and the PREFETCH folder contains 137 items. That seems ok.But my LAYOUT.INI file has kept lots of old and out of date entries. It 7,084 entries each pointing to a file or folder. That seems way too many. Very many of these entries refer to hard drives which are no longer in the system and to files which have been moved to another drive. Also to applications which have been removed or to folders which no longer exist. Is there a way to clean up my LAYOUT.INI. I have used BOOTVIS a few times in the past but it has not helped with LAYOUT.INI.