µTorrent is a is a free, ad-supported, lighter-weight BitTorrent client designed to consume less resources then the full BitTorrent version. Some uTorrent installs include potentially unwanted applications in the form of the Conduit Engine, which installs a toolbar, and makes homepage and default search engine changes to a user's web browser.

“calibre is a free and open source e-book library management application developed by users of e-books for users of e-books. It has a cornucopia of features divided into Library Management, E-book conversion, Downloading news from the web and converting it into e-book form, Comprehensive e-book viewer and Content server for online access to your book collection.”

Defraggler is a defragmentation utility which allows users to defragment individual files on their computer system. Defraggler can defragment individual files, groups of files (in a folder) or an entire disk partition, either by the user's command or automatically on a schedule. It supports FAT32, NTFS, and exFAT.

CCleaner developed by Piriform, is a utility program used to clean potentially unwanted files and invalid Windows Registry entries from a computer. CCleaner supports the cleaning of temporary or potentially unwanted files left by certain programs along with browsing history, cookies, recycle bin, memory dumps, file fragments, log files, system caches, application data, autocomplete form history, and various other data. The program also ...

Recuva is a data recovery program and is able to recover files that have been "permanently" deleted and marked by the operating system as free space. As with other file recovery programs Recuva works by looking for unreferenced data, but if the operating system has written new data over a deleted file then recovery will often not be possible.