7-Zip - File compression / archiver
Acrobat Reader - PDF reader
Acronis True Image 7.0 - Image backup and disaster recovery
Agave - Colorscheme designer
allSnap - Make all top level windows automatically align
Allway Sync - File synchronizer (rsync) for Windows
ALTools - Compression tools and other free utilities
Avast - Antivirus
AVG - Antivirus
Belarc Advisor - PC audit utility
Burn to the Brim - Optimally fills media
BurnCDCC - CD & DVD burner (burns ISOs)
CCleaner - Registry/Temporary files cleaner
CDBurnerXP - CD & DVD burner (burns ISOs)
ClamWin - Antivirus
Clonezilla - Disk cloning utility
Cobian Backup - Backup software
CPU-Z - CPU Identifier
DBAN - Drive wiper
Defraggler - Defrag individual files
DeltaCopy - rsync for Windows
DigestIt 2004 - Hash calculator (MD5, SHA - integrates with Windows Explorer)
DosBox - DOS emulator
dRuler - Screen ruler
DS Software - Handy and small utilities (CDCRC, DVDsig, dsCRC, dsMD5, dsSHA, dsDEL, etc)
EBCD - Emergency Boot CD (test memory, file & image backup, password reset)
Eraser - File & disk wiper
Free Create-Burn ISO - CD & DVD burner (burns ISOs)
FrHed - Hex Editor
g4u - Disk/partition cloning
Glary Utilities & more - Numerous powerful and easy-to-use system tools and utilities to fix, speed up, maintain and protect your PC.
GnuPG - Encryption
GParted - Gnome Partition Editor
GSplit - Split and merge big files
Hashcalc - Hash calculator (CRC, MD5, SHA, etc)
Hasher - MD5 & SHA hash calculator
IE PassView - Reveal passwords stored in IE (other nice utilities, too)
IE Privacy Keeper - IE & Firefox history eraser (and other freeware utilities)
ImgBurn - CD & DVD burner (burns ISOs)
IZArc - Archiving utility
jZip - Archiving utility
KeePass - Password safe
KillDisk - Drive wiper
Magical Jelly Bean Keyfinder - Retrieve Microsoft Product Key (CD Key)
MemTest - Memory tester
MisterHouse - Open source home automation
MSI Cleanup Utility - Windows Installer CleanUp Utility
nCleaner second - System and application cleaner
nnCron - Small and powerful task scheduler
Offline NT password & registry editor - Reset Windows passwords & registry editor
OllyDbg - 32-bit assembler level debugger for MS Windows
Pandora Recovery - Undelete, unerase, file recovery
Parted Magic - Partition Editor (LiveCD)
Partimage - Ghost / drive-image clone for Linux
Partition Logic - Hard disk partitioning and data management
Password Generator - Random password generator
PC Decrapifier - Clean off most of the annoying software that is typically shipped with newer PCs
PeaZip - Archiving utility
PicoZip Recovery Tool - Recover lost or forgotten passwords from password protected Zip files
PWSafe - Password safe
QtParted - Partition Editor
RealVNC - Remote control viewer/server
Recuva - Undelete, unerase, file recovery
RegSeeker/HoverIP - Windows registry cleaner / IP utilities (and other freeware utilities)
ReplaceEm - String replacing utility for Windows
Restoration - File/directory retriever (unerase/undelete)
Revo Uninstaller - Remove unwanted programs and traces easily
SafeXP - SafeXP, GameXP, etc
Sandboxie - Application sandbox
SC-PasswordUnleash - Reveal passwords behind asterisks
ScrubXP - Browser history eraser (and other freeware utilities)
SequoiaView - Graphical display of disk utilization
SimpleZip - Archiving utility (and other freeware utilities)
SIW - System information for Windows
Snadboy Revelation - Password revealer
Splitter & Merger - Split and merge big files (only 32Kb)
Synergy - Software KVM switch
Sysinternals - Various Utilities
SystemRescueCD - System Rescue CD (Partition, file system and network tools)
TeraCopy - Copy and move files at maximum speed with many other features
TestDisk - Data recovery
TightVNC - Remote control viewer/server
Torsmo - Linux system monitor
TreeSize - Shows space allocation on hard disk
Trinity Rescue Kit - CPR for your computer (Live Linux distro)
TrueCrypt - Disk Encryption
TUGZip - Archiving utility
Ultimate Boot CD - Bootable CD with lots of utilities and tools for repair/restore/diagnostics
Ultimate Boot CD for Windows - Bootable CD with lots of utilities and tools for repair/restore/diagnostics on Windows
UltraVNC - Remote control viewer/server
Unison - File synchronizer (rsync) for Windows
Unlocker - Unlock files and folders locked by Windows
USBDLM - USB Drive Letter Manager
VirtualBox - Virtualization products
VMware - Virtualization products
WinKeyFinder - View / change Windows product keys
XCruise - Filesystem Visualization (Linux)
XLiveCD - Cygwin X Server (X Windows) on Windows from CD
ZipCentral - Zip file manager
ZipGenius - Archiving utility