MiniTool Partition Wizard Free is a free utility that you can use to manage the hard drive partitions on your computer. Using this utility you can perform tasks such as copying, resizing, deleting, and creating partitions. In addition to all the normal partition management features, MiniTool Partition Wizard Free also includes a handy OS migration wizard that allows you to migrate to a larger hard drive or a speedier SSD drive. Overall, this utility packs all the features you would expect in a partition manager and does it for free.
Defraggler is a free hard disk defragmentation utility that allows you to defrag your entire hard drive or just individual files. Defraggler supports NTFS and FAT32 file systems. A unique ability of Defraggler is to be able to defrag a specific file rather than an entire hard drive. This allows you to increase the performance of opening a particular file if it is large and severely fragmented.
Folder Size is a tool that displays how much hard disk space every folder on a drive is using. This allows you to quickly find out what folders are using the most space in the event that you run out of storage on a particular partition. Folder Size also contains numerous other features such as different display charts, various sorting options, and support for CDROM, USB, and floppy media.
TreeSize Free is a utility that scans your hard drive and shows you how much hard drive space each folder on the particular partition is using. It is not uncommon to run out of space on a hard drive and one of the most frustrating things is not knowing which folders are using it all up. Using a program like TreeSize allows you to get a fast and easy overview of what folders are consuming the most space.
WinDirStat scans one or more hard drives and produces a detailed map or the disk making space hogs immediately apparent.