H2testw – Flash drive test utility written by Herald Bögeholz. Writes full flash drive space with test data then tries to read it back and verify integrity. Good for detecting counterfeit flash drives that report their size as larger than the actual flash memory inside. An alternative tool, with more options (ChkFlsh) can be downloaded from here.

Nmap – Network Scanner / Mapper. More info.

FurMark (v1.18) – GPU (graphics/video card) benchmark. Intensive OpenGL algorithms, useful for GPU stability and stress tests. More info.

Intel Burn Test (v2.54) – CPU stress test utility. Can’t link to the developer’s website (AgentGOD) as his domain seems to be suspended…

LogExpert – Log viewer / analyser. More info

Microsoft Network Monitor (32bit) (64bit) – Network traffic capture and protocol analysis. More info 

ClipX – Clipboard history manager. More info.

Windows 7 USB/DVD download tool – Create a bootable DVD or USB Flash drive. Works with Windows 7 and Windows 8. More info

Shell Menu Manager – 32 and 64 bit utilities by NirSoft – ShellMenuView and ShellExView. Edit Windows context menus (right click menus). More Info More info 

WakeOnLan – Simple WOL packed sender / receiver

IE Password Viewer – View and manage passwords stored by Internet Explorer. More info 

WinSCP – Open source free SFTP client and FTP client for Windows. Can be used to access Linux server filesystem from Windows. More info

RealVNC – Free version of RealVNC 4.1.2. More Info

Windows Installer Cleanup utility – Microsoft .msi installations cleanup (hard removal).

inSSIDer – Wi-Fi network scanner. More info

Beyond Execute – Execute processes on remote computers. Command line tool. More info

My Uninstaller – Displays the list of all installed applications with product name, company, version, uninstall string, installation folder and more. More info

Autoruns – Shows what programs are configured to run during system bootup or login. More info

7-Zip Portable – File archiver utility.

Process Explorer – Find out what files, registry keys and other objects processes have open, which DLLs they have loaded, and more. More info

Process Monitor – Advanced monitoring tool for Windows that shows real-time file system, Registry and process/thread activity. More info

Orca – Database table editor for creating and editing Windows Installer packages (MSI) and merge modules. More info

Filemon – Monitors and displays all file system activity on a system. Replaced by Process Monitor

Robocopy – (Robust File Copy) Command-line directory replication tool. More Info