You may view your hard drive in Disk Management and see unallocated space. The space will be on the hard drive, but Windows cannot use it. It is like having a spare room in your house but locked off.

UNTIL THE RELEASE of Windows 2000, Microsoft’s operating systems lacked even the most rudimentary disk space quota management. Because PowerQuest’s PowerExpert SRM (Storage Resource Management) 5.0 ...

Disk Expert is a new disk space analysis and management tool for the Mac that’s designed to help you organize your hard drive content and free up disk space. It requires Mac OS X 10.6 or higher, costs ...

Paragon Hard Disk Manager offers complete hard disk management including snapshot-based backup and recovery, the ability to create bootable media, and secure data wiping of any volume. For many Mac ...

My (now retro!) 12" Macbook was whining about having full disk space for a few days. It got to the point where apps were hanging, and I couldn't even empty the trash or rm files from Terminal. I ...

WinDirStat is a comprehensive disk usage statistics viewer and cleanup tool for Windows users. Inspired by KDirStat, a similar tool for KDE environments, WinDirStat offers a detailed visualization of ...