Windows NT Defragment Tool doesn’t defragment pages files and the registry hives. However, in some situations, we need to do this. For example, when we installed a new version of Windows Operating System with the upgrade install option.
PageDefrag can help us with defragmenting page files and registry hives.
Click “Defragment at next boot” radio box, and click “OK”, it will run defragment at the next time we start the computer. We can also set it to defragment at every boot, though I don’t recommend to do so.
PageDefrag can be downloaded on sysinternals.com.