Disk Fragmenter, a built-in tool with almost every version of Windows, can pre-arrange all the “fragmented” pieces of a file close together to help reduce the time it takes to open files or load programs on your computer. Usually, the built-in disk defragmenter will defragment the entire hard-drive at once and tend to ignore files that are smaller than 64 MB. But, now,  Microsoft offers another free utility Contig (short for contiguous) that lets you have better control over the defragmentation process.  Contig, at http://technet.microsoft.com/en-us/sysinternals/bb897428.aspx, lets you defragment individual files, folders, or the entire hard drive. You can run Contig from the command prompt, or try Power defragmenter, at http://my.opera.com/rejzor/blog/power-defragmenter-3-0-released, an easy and more visual interface for Contig. Power Defragmenter which internally uses Contig to perform the defragmentation process. You can also run Contig, online, at http://live.sysinternals.com/Contig.exe. Unlike others Contig uses Windows’internal defragmentation APIs, hence, won’t cause disk corruption, even if the programme is terminated suddenly. Please note you’ll need to run the utility as an administrator as it will throw an “Access denied” error. Defragmentation is recommended for traditional hard drives only.


FreeFileSync is an Open-Source folder comparison and synchronization tool. It is optimized for highest performance and usability without restricted or overloaded UI interfaces. Its features include  Compare files (bytewise or by date) and synchronize them; No limitations: An arbitrary number of files can be synchronized; Support for multiple folder pairs with distinct configuration; Full support for Windows/Linux Symbolic Links and Windows Junction Points; Create Batch Jobs for automated synchronization with or without GUI; Support for filesizes larger than 4 GB; Filter functionality to include/exclude files from synchronization (without re-compare!); Create sync jobs via GUI to synchronize automatically (can be scheduled or executed directly);  Subfolders are also synchronized, including empty folders; Progress indicators are updated only every 100ms for optimal performance!; Delete before copy: Avoid disc space shortages with large sync-operations; Network support; many advance features for the techie/professional. The 2.1 MB FreeFileSync v3.1 can be downloaded at


You need no more worry about the indiscriminate sharing of data, thanks to OneSwarm, a new peer-to-peer tool. OneSwarm can help you decide to share data in a variety of ways, like sharing it with some and not with all and sundry.  Features of this friend-to-friend (F2F) data sharing utility are Privacy preserving - OneSwarm uses source address rewriting to protect user privacy. Instead of always transmitting data directly from sender to receiver (immediately identifying both), OneSwarm may forward data through multiple intermedaries, obscuring the identity of both sender and receiver;  User friendly: web-based interface supports real-time transcoding of many audio and video formats for in-browser playback, this eliminates the need for casual users to master a new application’s interface or search for custom media codecs; Open: OneSwarm data sharing features are built on cryptographic standards, e.g., X.509 certificates and SSL encryption; OneSwarm can operate as a fully backwards compatible BitTorrent clien, and more. OneSwarm, a free and open source software, v0.6.7– 10 October, 2009, for Firefox, Chrome, Safari, and Opera, can be downloaded at http://oneswarm.cs.washington.edu/download.html