Enable Boot Defrag on Windows XP

A new feature of Windows XP is the ability to defragment boot files and thereby to speed up your boot time. Enabling Boot Defrag places all boot files next to each other on the disk to allow for faster booting. This should be enabled by default, however it can be changed inadvertently by various software or other means. If you experience a slow boot, you should definitely check to make sure that your Boot Defrag is enabled.

To enable or disable the Boot Defrag, do the following:

1. Start Regedit. If you are unfamiliar with regedit please refer to our FAQ on how to get started.
2. Navigate to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Dfrg\BootOptimizeFunction
3. Select Enable from the list on the right.
4. Right on it and select Modify.
5. Change the value to Y to enable and N to disable.
6. Reboot your computer.