New
#71
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My understanding is some system data is locked when Windows is running because the OS can't deal with the impact of changing it's location. For instance when changes are made to the page file size or location Windows says the changes will not take effect until the system is restarted. PerfectDisk (and a number of other defraggers such as Diskeeper) have a boot-time defrag option that moves system files before the GUI is loaded (it runs in a text screen like chkdsk.exe). This makes it possible to defrag the page file, the MFT and other "meta data". Sometimes this is necessary, as when I needed to shrink my partition.