Sysinternals Suite is a collection of system utilities designed to assist users in diagnosing and troubleshooting Windows applications and services.
The products inside the suite were originally co-developed and are currently maintained by Mark Russinovich, who is a well-known technical fellow of Microsoft. The developer was the co-founder of a company named Winternals, which was the original the brand that most of the Sysinternals utilities carried.
However, Winternals was acquired by Microsoft in 2006 and as a result, most of the applications issued by the former team are now owned by the Redmond company. All of them are available as separate downloads, as well as under the form of an all-in-one package, which is a more reliable approach for professionals, such as system administrators.
The suite includes over seventy utilities aimed to troubleshoot matters related to files and disk management, networking and security issues, as well as process and system information. Since the set is incredibly rich, analyzing each of them would take a considerable amount of time and as a consequence, we decided to concentrate on the most popular ones.
One of the top downloaded utilities is Process Explorer, which retrieves detailed information about all running processes and produces memory statistics, allowing you to track down services to their original resources.
With the aid of Autoruns, you can manage startup items, while Process Monitor provides real-time file system and registry activity monitoring. Administrators of Windows NT / 2K local and remote systems can use the command line options of PsTools to acchieve fast process execution and to retrieve information regarding processes.
Other tools worth mentioning are RootkitRevealer (detects kernel-mode rootkits), TCPView (shows TCP and UDP endpoints), Desktops (manages your applications on a multi-desktop system), SDelete (overwrites sensitive data, then cleans the system in order to gain space), Sigcheck (identifies if images are digitally signed), to name just a few.
All of the above considered, Sysinternals Suite is a reliable software collection that can help system administrators to diagnose and repair issues related to almost everything, from file system to network and security.

What's New in This Release:
· Autoruns v11.70: This release of Autoruns, a powerful utility for scanning and disabling autostart code, adds a new option to have it show only per-user locations, something that is useful when analyzing the autostarts of different accounts than the one that Autoruns is running under.
· Bginfo v4.20: BgInfo, a utility that creates custom desktop backgrounds that display system information, now correctly reports version information for Windows 8.1 and Windows Server 2012 R2.
· Disk2vhd v1.64: This update to Disk2Vhd, a tool for converting physical system disks to VHDs for use by virtual machines, now supports disk sizes of up to 2 TB.
· Process Explorer v15.40: Process Explorer, a Task Manager replacement, now shows WMI providers hosted in Wmiprvse processes (thanks to Mohamed Elghetany for contributions); includes an option that configures it to automatically run when you logon; and introduces a process view column that shows process DPI awareness support on Windows 8.1 systems.