UltimateDefrag (Freeware Edition) is a Free Portable Defragmenter that allows you to optimize your hard drive any way you want. This free defrag tool enables a user to not only defrag files on a disk, but also put frequently accessed files in areas on your hard drive where they will achieve maximum performance.
Defraggler Portable is a free file and disk defragmenter tool that can be used to defragment only the files you want to or defrag an entire drive. It can be used for defragmenting both internal and external drives including USB flash drives. This free defragmenting software uses an attractive GUI that is intuitive and is really easy to use.
PageDefrag is a free, portable defragmenter designed to handle files that typical defragmenting tools can't manage. These include files such as registry hives, paging files, event logs, and hibernation files. It is particularly useful for defragmenting files that are open for exclusive access by the operating system or applications.
WinContig is a simple free defrag tool that can be used to quickly defragment files without defragmenting the entire disk. This tool can even defrag ISO files. The creator designed it to have the ability to defragment folders or even single files without having to defrag a whole drive or partition.
