Process Explorer: Process Explorer is a free program that provides the functions of Windows Task Manager. It also allows you to see which files a particular process is using.
Teracopy: TeraCopy is a free utility that can move or copy your files a lot faster than default which is great for large file transfers. It also replaces the default copy and move operations in Windows, so you can install it and then forget about it.
Defraggler: Defraggler is a replacement for Windows’ default Disk Defragmenter. It lets you choose which files or folders to defrag as well as whole drives. It also provides the option to move big files such as movies, archives and disk images to the end of the drive. Another feature is to defrag the free space on your drive which puts all your files together by forming one large free space from all the smaller free spaces between your files.
CCleaner: CCleaner is a great tool for cleaning up your computer.It deletes temporary files left by programs such as Chrome, Windows Media Player, Winrar and Office along with things like system caches, memory dumps, log files and browsing history. It can also fix missing references and unused entries in the registry. Moreover, it can wipe the free space on your drive to disable recovery of deleted files, help you uninstall programs and lets you manage the start-up programs like MSConfig.
Everything: Forget about Windows Search. Everything search engine is a tool for Windows that lets you find files and folders instantly. It indexes a fresh install of Windows in a second and uses very little resources. You can also use wildcards and regular expressions while searching, making this a great program as long as you can’t remember where your files are.
Greenshot: Greenshot is a great open source screenshot tool that pretty much replaces your Print Screen button. It provides shortcuts to capture a specific area, a window or the entire screen and later allows you to edit and save the captured image. Since I don’t use this tool all the time I only run it when I need it and since it uses lots of RAM.
WinDirStat: WinDirStat provides you a disk usage statistic allowing you to clean up your system more effectively. It allows you to see which files and folders use up the most space in your system.
Fences: Fences is a free program that allows you to organize your files on your desktop. It surrounds your similar icons with fences, contributing to the layout of your desktop and save desktop space. I don’t put many icons on my desktop but it is a great utility for those who do.
Recuva: Recuva is a free file recovery program which allows you to undelete files that you erased. You can scan for deleted files in a drive or in specific folders and save the files you need to folder your choice.
EASEUS Partition Manager: EASEUS is a free partition manager, it allows you to partition your hard drive as you like and resize the partitions. It also has more features such as partition copying, creating boot disks, drive letter switching and more.